Subtract 4/30 from 30/10, Solve 3 0/10

Subtract 4/30 from 30/10

1^st number: 3 0/10, 2^nd number: 4/30

30/10 - 4/30 is 43/15.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 10 × 3 = 30,
30/10 = 30 × 3/10 × 3 = 90/30
Likewise, for the 2nd fraction, since 30 × 1 = 30,
4/30 = 4 × 1/30 × 1 = 4/30
Subtract the two like fractions:
90/30 - 4/30 = 90 - 4/30 = 86/30
After reducing the fraction, the answer is 43/15
In mixed form: 213/15

MathStep (Works offline)

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