Subtract 12/16 from 40/21
1st number: 1 19/21, 2nd number: 12/16
40/21 - 12/16 is 97/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
40/21 = 40 × 16/21 × 16 = 640/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
12/16 = 12 × 21/16 × 21 = 252/336 - Subtract the two like fractions:
640/336 - 252/336 = 640 - 252/336 = 388/336 - After reducing the fraction, the answer is 97/84
- In mixed form: 113/84
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