Subtract 81/40 from 70/8
1st number: 8 6/8, 2nd number: 2 1/40
70/8 - 81/40 is 269/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
70/8 = 70 × 5/8 × 5 = 350/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
81/40 = 81 × 1/40 × 1 = 81/40 - Subtract the two like fractions:
350/40 - 81/40 = 350 - 81/40 = 269/40 - In mixed form: 629/40
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