Subtract 15/70 from 75/7
1st number: 10 5/7, 2nd number: 15/70
75/7 - 15/70 is 21/2.
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,
75/7 = 75 × 10/7 × 10 = 750/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Subtract the two like fractions:
750/70 - 15/70 = 750 - 15/70 = 735/70 - After reducing the fraction, the answer is 21/2
- In mixed form: 101/2
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