Subtract 45/9 from 7/50, Solve 7/50

Subtract 45/9 from 7/50

1^st number: 7/50, 2^nd number: 5 0/9

7/50 - 45/9 is -243/50.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 9 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 50 × 9 = 450,
7/50 = 7 × 9/50 × 9 = 63/450
Likewise, for the 2nd fraction, since 9 × 50 = 450,
45/9 = 45 × 50/9 × 50 = 2250/450
Subtract the two like fractions:
63/450 - 2250/450 = 63 - 2250/450 = -2187/450
After reducing the fraction, the answer is -243/50

MathStep (Works offline)

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