Subtract 18/70 from 84/48, Solve 1 36/48

Subtract 18/70 from 84/48

1^st number: 1 36/48, 2^nd number: 18/70

84/48 - 18/70 is 209/140.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 48 × 35 = 1680,
84/48 = 84 × 35/48 × 35 = 2940/1680
Likewise, for the 2nd fraction, since 70 × 24 = 1680,
18/70 = 18 × 24/70 × 24 = 432/1680
Subtract the two like fractions:
2940/1680 - 432/1680 = 2940 - 432/1680 = 2508/1680
After reducing the fraction, the answer is 209/140
In mixed form: 169/140

MathStep (Works offline)

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