Subtract 4/45 from 4/2, Solve 2 0/2

Subtract 4/45 from 4/2

1^st number: 2 0/2, 2^nd number: 4/45

4/2 - 4/45 is 86/45.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 2 × 45 = 90,
4/2 = 4 × 45/2 × 45 = 180/90
Likewise, for the 2nd fraction, since 45 × 2 = 90,
4/45 = 4 × 2/45 × 2 = 8/90
Subtract the two like fractions:
180/90 - 8/90 = 180 - 8/90 = 172/90
After reducing the fraction, the answer is 86/45
In mixed form: 141/45

MathStep (Works offline)

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