Subtract 42/6 from 40/72
1st number: 40/72, 2nd number: 7 0/6
40/72 - 42/6 is -58/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 6 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
40/72 = 40 × 1/72 × 1 = 40/72 - Likewise, for the 2nd fraction, since 6 × 12 = 72,
42/6 = 42 × 12/6 × 12 = 504/72 - Subtract the two like fractions:
40/72 - 504/72 = 40 - 504/72 = -464/72 - After reducing the fraction, the answer is -58/9
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