Subtract 3/48 from 70/49, Solve 1 21/49

Subtract 3/48 from 70/49

1^st number: 1 21/49, 2^nd number: 3/48

70/49 - 3/48 is 153/112.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 48 is 2352

Next, find the equivalent fraction of both fractional numbers with denominator 2352
For the 1st fraction, since 49 × 48 = 2352,
70/49 = 70 × 48/49 × 48 = 3360/2352
Likewise, for the 2nd fraction, since 48 × 49 = 2352,
3/48 = 3 × 49/48 × 49 = 147/2352
Subtract the two like fractions:
3360/2352 - 147/2352 = 3360 - 147/2352 = 3213/2352
After reducing the fraction, the answer is 153/112
In mixed form: 141/112

MathStep (Works offline)

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