Subtract 42/54 from 15/8
1st number: 1 7/8, 2nd number: 42/54
15/8 - 42/54 is 79/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
15/8 = 15 × 27/8 × 27 = 405/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
42/54 = 42 × 4/54 × 4 = 168/216 - Subtract the two like fractions:
405/216 - 168/216 = 405 - 168/216 = 237/216 - After reducing the fraction, the answer is 79/72
- In mixed form: 17/72
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