Subtract 15/25 from 70/12, Solve 5 10/12

Subtract 15/25 from 70/12

1^st number: 5 10/12, 2^nd number: 15/25

70/12 - 15/25 is 157/30.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
70/12 = 70 × 25/12 × 25 = 1750/300
Likewise, for the 2nd fraction, since 25 × 12 = 300,
15/25 = 15 × 12/25 × 12 = 180/300
Subtract the two like fractions:
1750/300 - 180/300 = 1750 - 180/300 = 1570/300
After reducing the fraction, the answer is 157/30
In mixed form: 57/30

MathStep (Works offline)

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