Subtract 8/21 from 50/10, Solve 5 0/10

Subtract 8/21 from 50/10

1^st number: 5 0/10, 2^nd number: 8/21

50/10 - 8/21 is 97/21.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
50/10 = 50 × 21/10 × 21 = 1050/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
8/21 = 8 × 10/21 × 10 = 80/210
Subtract the two like fractions:
1050/210 - 80/210 = 1050 - 80/210 = 970/210
After reducing the fraction, the answer is 97/21
In mixed form: 413/21

MathStep (Works offline)

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