Subtract 3/72 from 75/42
1st number: 1 33/42, 2nd number: 3/72
75/42 - 3/72 is 293/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
75/42 = 75 × 12/42 × 12 = 900/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
3/72 = 3 × 7/72 × 7 = 21/504 - Subtract the two like fractions:
900/504 - 21/504 = 900 - 21/504 = 879/504 - After reducing the fraction, the answer is 293/168
- In mixed form: 1125/168
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