Subtract 12/50 from 15/7, Solve 2 1/7

Subtract 12/50 from 15/7

1^st number: 2 1/7, 2^nd number: 12/50

15/7 - 12/50 is 333/175.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 50 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 7 × 50 = 350,
15/7 = 15 × 50/7 × 50 = 750/350
Likewise, for the 2nd fraction, since 50 × 7 = 350,
12/50 = 12 × 7/50 × 7 = 84/350
Subtract the two like fractions:
750/350 - 84/350 = 750 - 84/350 = 666/350
After reducing the fraction, the answer is 333/175
In mixed form: 1158/175

MathStep (Works offline)

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