Subtract 80/24 from 3/10, Solve 3/10

Subtract 80/24 from 3/10

1^st number: 3/10, 2^nd number: 3 8/24

3/10 - 80/24 is -91/30.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 10 × 12 = 120,
3/10 = 3 × 12/10 × 12 = 36/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
80/24 = 80 × 5/24 × 5 = 400/120
Subtract the two like fractions:
36/120 - 400/120 = 36 - 400/120 = -364/120
After reducing the fraction, the answer is -91/30

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad