Subtract 72/42 from 24/9
1st number: 2 6/9, 2nd number: 1 30/42
24/9 - 72/42 is 20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
24/9 = 24 × 14/9 × 14 = 336/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
72/42 = 72 × 3/42 × 3 = 216/126 - Subtract the two like fractions:
336/126 - 216/126 = 336 - 216/126 = 120/126 - After reducing the fraction, the answer is 20/21
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