Subtract 72/84 from 2/45
2/45 - 72/84 is -256/315.
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,
2/45 = 2 × 28/45 × 28 = 56/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
72/84 = 72 × 15/84 × 15 = 1080/1260 - Subtract the two like fractions:
56/1260 - 1080/1260 = 56 - 1080/1260 = -1024/1260 - After reducing the fraction, the answer is -256/315
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