Subtract 80/42 from 50/72
1st number: 50/72, 2nd number: 1 38/42
50/72 - 80/42 is -305/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
50/72 = 50 × 7/72 × 7 = 350/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
80/42 = 80 × 12/42 × 12 = 960/504 - Subtract the two like fractions:
350/504 - 960/504 = 350 - 960/504 = -610/504 - After reducing the fraction, the answer is -305/252
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