Subtract 30/84 from 15/9
1st number: 1 6/9, 2nd number: 30/84
15/9 - 30/84 is 55/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
15/9 = 15 × 28/9 × 28 = 420/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
30/84 = 30 × 3/84 × 3 = 90/252 - Subtract the two like fractions:
420/252 - 90/252 = 420 - 90/252 = 330/252 - After reducing the fraction, the answer is 55/42
- In mixed form: 113/42
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