Subtract 10/5 from 40/70
1st number: 40/70, 2nd number: 2 0/5
40/70 - 10/5 is -10/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
40/70 = 40 × 1/70 × 1 = 40/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
10/5 = 10 × 14/5 × 14 = 140/70 - Subtract the two like fractions:
40/70 - 140/70 = 40 - 140/70 = -100/70 - After reducing the fraction, the answer is -10/7
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