Subtract 72/84 from 30/2
1st number: 15 0/2, 2nd number: 72/84
30/2 - 72/84 is 99/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
30/2 = 30 × 42/2 × 42 = 1260/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
72/84 = 72 × 1/84 × 1 = 72/84 - Subtract the two like fractions:
1260/84 - 72/84 = 1260 - 72/84 = 1188/84 - After reducing the fraction, the answer is 99/7
- In mixed form: 141/7
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