Subtract 40/21 from 21/16
1st number: 1 5/16, 2nd number: 1 19/21
21/16 - 40/21 is -199/336.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
21/16 = 21 × 21/16 × 21 = 441/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
40/21 = 40 × 16/21 × 16 = 640/336 - Subtract the two like fractions:
441/336 - 640/336 = 441 - 640/336 = -199/336
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