Subtract 1/32 from 21/45, Solve 21/45

Subtract 1/32 from 21/45

21/45 - 1/32 is 209/480.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1440
For the 1st fraction, since 45 × 32 = 1440,
21/45 = 21 × 32/45 × 32 = 672/1440
Likewise, for the 2nd fraction, since 32 × 45 = 1440,
1/32 = 1 × 45/32 × 45 = 45/1440
Subtract the two like fractions:
672/1440 - 45/1440 = 672 - 45/1440 = 627/1440
After reducing the fraction, the answer is 209/480

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