Subtract 60/49 from 75/72, Solve 1 3/72

Subtract 60/49 from 75/72

1^st number: 1 3/72, 2^nd number: 1 11/49

75/72 - 60/49 is -215/1176.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 49 is 3528

Next, find the equivalent fraction of both fractional numbers with denominator 3528
For the 1st fraction, since 72 × 49 = 3528,
75/72 = 75 × 49/72 × 49 = 3675/3528
Likewise, for the 2nd fraction, since 49 × 72 = 3528,
60/49 = 60 × 72/49 × 72 = 4320/3528
Subtract the two like fractions:
3675/3528 - 4320/3528 = 3675 - 4320/3528 = -645/3528
After reducing the fraction, the answer is -215/1176

MathStep (Works offline)

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