Subtract 30/84 from 81/45
1st number: 1 36/45, 2nd number: 30/84
81/45 - 30/84 is 101/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
81/45 = 81 × 28/45 × 28 = 2268/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
30/84 = 30 × 15/84 × 15 = 450/1260 - Subtract the two like fractions:
2268/1260 - 450/1260 = 2268 - 450/1260 = 1818/1260 - After reducing the fraction, the answer is 101/70
- In mixed form: 131/70
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