Subtract 5/21 from 48/18
1st number: 2 12/18, 2nd number: 5/21
48/18 - 5/21 is 17/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
48/18 = 48 × 7/18 × 7 = 336/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
5/21 = 5 × 6/21 × 6 = 30/126 - Subtract the two like fractions:
336/126 - 30/126 = 336 - 30/126 = 306/126 - After reducing the fraction, the answer is 17/7
- In mixed form: 23/7
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