Subtract 15/9 from 40/56
1st number: 40/56, 2nd number: 1 6/9
40/56 - 15/9 is -20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
40/56 = 40 × 9/56 × 9 = 360/504 - Likewise, for the 2nd fraction, since 9 × 56 = 504,
15/9 = 15 × 56/9 × 56 = 840/504 - Subtract the two like fractions:
360/504 - 840/504 = 360 - 840/504 = -480/504 - After reducing the fraction, the answer is -20/21
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