Subtract 18/21 from 45/32, Solve 1 13/32

Subtract 18/21 from 45/32

1^st number: 1 13/32, 2^nd number: 18/21

45/32 - 18/21 is 123/224.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 21 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 32 × 21 = 672,
45/32 = 45 × 21/32 × 21 = 945/672
Likewise, for the 2nd fraction, since 21 × 32 = 672,
18/21 = 18 × 32/21 × 32 = 576/672
Subtract the two like fractions:
945/672 - 576/672 = 945 - 576/672 = 369/672
After reducing the fraction, the answer is 123/224

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