Subtract 15/42 from 40/16
1st number: 2 8/16, 2nd number: 15/42
40/16 - 15/42 is 15/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
40/16 = 40 × 21/16 × 21 = 840/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
15/42 = 15 × 8/42 × 8 = 120/336 - Subtract the two like fractions:
840/336 - 120/336 = 840 - 120/336 = 720/336 - After reducing the fraction, the answer is 15/7
- In mixed form: 21/7
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