Subtract 70/54 from 36/75, Solve 36/75

Subtract 70/54 from 36/75

1^st number: 36/75, 2^nd number: 1 16/54

36/75 - 70/54 is -551/675.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 54 is 1350

Next, find the equivalent fraction of both fractional numbers with denominator 1350
For the 1st fraction, since 75 × 18 = 1350,
36/75 = 36 × 18/75 × 18 = 648/1350
Likewise, for the 2nd fraction, since 54 × 25 = 1350,
70/54 = 70 × 25/54 × 25 = 1750/1350
Subtract the two like fractions:
648/1350 - 1750/1350 = 648 - 1750/1350 = -1102/1350
After reducing the fraction, the answer is -551/675

MathStep (Works offline)

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