Subtract 42/8 from 80/36
1st number: 2 8/36, 2nd number: 5 2/8
80/36 - 42/8 is -109/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
80/36 = 80 × 2/36 × 2 = 160/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
42/8 = 42 × 9/8 × 9 = 378/72 - Subtract the two like fractions:
160/72 - 378/72 = 160 - 378/72 = -218/72 - After reducing the fraction, the answer is -109/36
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