Subtract 90/18 from 60/49, Solve 1 11/49

Subtract 90/18 from 60/49

1^st number: 1 11/49, 2^nd number: 5 0/18

60/49 - 90/18 is -185/49.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 18 is 882

Next, find the equivalent fraction of both fractional numbers with denominator 882
For the 1st fraction, since 49 × 18 = 882,
60/49 = 60 × 18/49 × 18 = 1080/882
Likewise, for the 2nd fraction, since 18 × 49 = 882,
90/18 = 90 × 49/18 × 49 = 4410/882
Subtract the two like fractions:
1080/882 - 4410/882 = 1080 - 4410/882 = -3330/882
After reducing the fraction, the answer is -185/49

MathStep (Works offline)

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