Subtract 84/10 from 42/70
1st number: 42/70, 2nd number: 8 4/10
42/70 - 84/10 is -39/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
42/70 = 42 × 1/70 × 1 = 42/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
84/10 = 84 × 7/10 × 7 = 588/70 - Subtract the two like fractions:
42/70 - 588/70 = 42 - 588/70 = -546/70 - After reducing the fraction, the answer is -39/5
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