Subtract 30/7 from 81/10
1st number: 8 1/10, 2nd number: 4 2/7
81/10 - 30/7 is 267/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
81/10 = 81 × 7/10 × 7 = 567/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
30/7 = 30 × 10/7 × 10 = 300/70 - Subtract the two like fractions:
567/70 - 300/70 = 567 - 300/70 = 267/70 - In mixed form: 357/70
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