Subtract 60/14 from 70/18, Solve 3 16/18

Subtract 60/14 from 70/18

1^st number: 3 16/18, 2^nd number: 4 4/14

70/18 - 60/14 is -25/63.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
60/14 = 60 × 9/14 × 9 = 540/126
Subtract the two like fractions:
490/126 - 540/126 = 490 - 540/126 = -50/126
After reducing the fraction, the answer is -25/63

MathStep (Works offline)

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