Subtract 84/20 from 8/70
1st number: 8/70, 2nd number: 4 4/20
8/70 - 84/20 is -143/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
8/70 = 8 × 2/70 × 2 = 16/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
84/20 = 84 × 7/20 × 7 = 588/140 - Subtract the two like fractions:
16/140 - 588/140 = 16 - 588/140 = -572/140 - After reducing the fraction, the answer is -143/35
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