Subtract 81/8 from 49/10
1st number: 4 9/10, 2nd number: 10 1/8
49/10 - 81/8 is -209/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
49/10 = 49 × 4/10 × 4 = 196/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
81/8 = 81 × 5/8 × 5 = 405/40 - Subtract the two like fractions:
196/40 - 405/40 = 196 - 405/40 = -209/40
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