Subtract 10/20 from 28/3, Solve 9 1/3

Subtract 10/20 from 28/3

1^st number: 9 1/3, 2^nd number: 10/20

28/3 - 10/20 is 53/6.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 3 × 20 = 60,
28/3 = 28 × 20/3 × 20 = 560/60
Likewise, for the 2nd fraction, since 20 × 3 = 60,
10/20 = 10 × 3/20 × 3 = 30/60
Subtract the two like fractions:
560/60 - 30/60 = 560 - 30/60 = 530/60
After reducing the fraction, the answer is 53/6
In mixed form: 85/6

MathStep (Works offline)

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