Subtract 40/49 from 21/32
21/32 - 40/49 is -251/1568.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 49 is 1568
Next, find the equivalent fraction of both fractional numbers with denominator 1568 - For the 1st fraction, since 32 × 49 = 1568,
21/32 = 21 × 49/32 × 49 = 1029/1568 - Likewise, for the 2nd fraction, since 49 × 32 = 1568,
40/49 = 40 × 32/49 × 32 = 1280/1568 - Subtract the two like fractions:
1029/1568 - 1280/1568 = 1029 - 1280/1568 = -251/1568
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