Subtract 70/54 from 72/28
1st number: 2 16/28, 2nd number: 1 16/54
72/28 - 70/54 is 241/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
72/28 = 72 × 27/28 × 27 = 1944/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
70/54 = 70 × 14/54 × 14 = 980/756 - Subtract the two like fractions:
1944/756 - 980/756 = 1944 - 980/756 = 964/756 - After reducing the fraction, the answer is 241/189
- In mixed form: 152/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56-70/54 72/84-70/54