Subtract 4/5 from 21/32
21/32 - 4/5 is -23/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 5 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
21/32 = 21 × 5/32 × 5 = 105/160 - Likewise, for the 2nd fraction, since 5 × 32 = 160,
4/5 = 4 × 32/5 × 32 = 128/160 - Subtract the two like fractions:
105/160 - 128/160 = 105 - 128/160 = -23/160
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