Subtract 42/8 from 7/72
1st number: 7/72, 2nd number: 5 2/8
7/72 - 42/8 is -371/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
7/72 = 7 × 1/72 × 1 = 7/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
42/8 = 42 × 9/8 × 9 = 378/72 - Subtract the two like fractions:
7/72 - 378/72 = 7 - 378/72 = -371/72
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