Subtract 4/45 from 45/32, Solve 1 13/32

Subtract 4/45 from 45/32

1^st number: 1 13/32, 2^nd number: 4/45

45/32 - 4/45 is 1897/1440.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 45 is 1440

Next, find the equivalent fraction of both fractional numbers with denominator 1440
For the 1st fraction, since 32 × 45 = 1440,
45/32 = 45 × 45/32 × 45 = 2025/1440
Likewise, for the 2nd fraction, since 45 × 32 = 1440,
4/45 = 4 × 32/45 × 32 = 128/1440
Subtract the two like fractions:
2025/1440 - 128/1440 = 2025 - 128/1440 = 1897/1440
In mixed form: 1457/1440

MathStep (Works offline)

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