Subtract 10/50 from 50/40, Solve 1 10/40

Subtract 10/50 from 50/40

1^st number: 1 10/40, 2^nd number: 10/50

50/40 - 10/50 is 21/20.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 50 is 200

Next, find the equivalent fraction of both fractional numbers with denominator 200
For the 1st fraction, since 40 × 5 = 200,
50/40 = 50 × 5/40 × 5 = 250/200
Likewise, for the 2nd fraction, since 50 × 4 = 200,
10/50 = 10 × 4/50 × 4 = 40/200
Subtract the two like fractions:
250/200 - 40/200 = 250 - 40/200 = 210/200
After reducing the fraction, the answer is 21/20
In mixed form: 11/20

MathStep (Works offline)

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