Addition and subtraction of fractions | Baamboozle - Baamboozle

The spacecraft completed five space raids. If it used 3/16 of its fuel reserves on each raid, what fraction of fuel remains in the spacecraft?

1/16

A group of researchers discovered an unknown planet. If 2/3 of its surface is covered by oceans and 1/5 is covered by deserts, what fraction of the planet can be considered habitable?

2/15

А spacecraft launches every 26 months. If the next launch was in May, when will the next one be?

May + 26 months = July.

If three aliens weigh 30 kg, then how much do five aliens of the same kind weigh?

50 kg

A space astronomer discovered 1/4 of the new stars in the galaxy. If there are a total of 200 billion stars in the galaxy, how many stars did he discover?

50 billion stars

On the planet Venus, there were 9 oceans. Then, 2/3 of the oceans dried up. How many oceans are left?

3

In the Andromeda galaxy, there were 20 planets. An alien visited 2/5 of them. How many planets did the alien visit?

8

The spacecraft delivered 6/10 of the required resources to Mercury. How many more resources does it need to deliver to complete the mission?

2/5

An alien researcher collected 4/6 samples of gas on the space station. How many more samples does he need to collect to complete the research?

1/3

On the planet Mars, there were 9/10 crystals. Then, 1/5 of the crystals were used for the construction of a base. How many crystals are left on the planet?

7/10

A group of researchers went on an expedition to Saturn. They collected 3/5 of soil samples and then an additional 2/15. How many samples, in total, did they collect?

11/15