Subtract 63/50 from 12/18, Solve 12/18

Subtract 63/50 from 12/18

1^st number: 12/18, 2^nd number: 1 13/50

12/18 - 63/50 is -89/150.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 18 × 25 = 450,
12/18 = 12 × 25/18 × 25 = 300/450
Likewise, for the 2nd fraction, since 50 × 9 = 450,
63/50 = 63 × 9/50 × 9 = 567/450
Subtract the two like fractions:
300/450 - 567/450 = 300 - 567/450 = -267/450
After reducing the fraction, the answer is -89/150

MathStep (Works offline)

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