Subtract 21/35 from 81/8
1st number: 10 1/8, 2nd number: 21/35
81/8 - 21/35 is 381/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
81/8 = 81 × 35/8 × 35 = 2835/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Subtract the two like fractions:
2835/280 - 168/280 = 2835 - 168/280 = 2667/280 - After reducing the fraction, the answer is 381/40
- In mixed form: 921/40
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