Subtract 45/7 from 42/8
1st number: 5 2/8, 2nd number: 6 3/7
42/8 - 45/7 is -33/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
45/7 = 45 × 8/7 × 8 = 360/56 - Subtract the two like fractions:
294/56 - 360/56 = 294 - 360/56 = -66/56 - After reducing the fraction, the answer is -33/28
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