Subtract 42/10 from 81/16
1st number: 5 1/16, 2nd number: 4 2/10
81/16 - 42/10 is 69/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
81/16 = 81 × 5/16 × 5 = 405/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
42/10 = 42 × 8/10 × 8 = 336/80 - Subtract the two like fractions:
405/80 - 336/80 = 405 - 336/80 = 69/80
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