Subtract 84/7 from 42/5
1st number: 8 2/5, 2nd number: 12 0/7
42/5 - 84/7 is -18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
42/5 = 42 × 7/5 × 7 = 294/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
84/7 = 84 × 5/7 × 5 = 420/35 - Subtract the two like fractions:
294/35 - 420/35 = 294 - 420/35 = -126/35 - After reducing the fraction, the answer is -18/5
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