Subtract 4/45 from 70/84
70/84 - 4/45 is 67/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
70/84 = 70 × 15/84 × 15 = 1050/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
4/45 = 4 × 28/45 × 28 = 112/1260 - Subtract the two like fractions:
1050/1260 - 112/1260 = 1050 - 112/1260 = 938/1260 - After reducing the fraction, the answer is 67/90
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