Subtract 50/14 from 54/18, Solve 3 0/18

Subtract 50/14 from 54/18

1^st number: 3 0/18, 2^nd number: 3 8/14

54/18 - 50/14 is -4/7.

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,
54/18 = 54 × 7/18 × 7 = 378/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
50/14 = 50 × 9/14 × 9 = 450/126
Subtract the two like fractions:
378/126 - 450/126 = 378 - 450/126 = -72/126
After reducing the fraction, the answer is -4/7

MathStep (Works offline)

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