Subtract 72/7 from 54/5
1st number: 10 4/5, 2nd number: 10 2/7
54/5 - 72/7 is 18/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
54/5 = 54 × 7/5 × 7 = 378/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
72/7 = 72 × 5/7 × 5 = 360/35 - Subtract the two like fractions:
378/35 - 360/35 = 378 - 360/35 = 18/35
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