Subtract 15/70 from 40/7
1st number: 5 5/7, 2nd number: 15/70
40/7 - 15/70 is 11/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
40/7 = 40 × 10/7 × 10 = 400/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Subtract the two like fractions:
400/70 - 15/70 = 400 - 15/70 = 385/70 - After reducing the fraction, the answer is 11/2
- In mixed form: 51/2
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