Subtract 40/20 from 9/70
1st number: 9/70, 2nd number: 2 0/20
9/70 - 40/20 is -131/70.
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,
9/70 = 9 × 2/70 × 2 = 18/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
40/20 = 40 × 7/20 × 7 = 280/140 - Subtract the two like fractions:
18/140 - 280/140 = 18 - 280/140 = -262/140 - After reducing the fraction, the answer is -131/70
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