Subtract 45/32 from 15/21
1st number: 15/21, 2nd number: 1 13/32
15/21 - 45/32 is -155/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
15/21 = 15 × 32/21 × 32 = 480/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
45/32 = 45 × 21/32 × 21 = 945/672 - Subtract the two like fractions:
480/672 - 945/672 = 480 - 945/672 = -465/672 - After reducing the fraction, the answer is -155/224
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