Subtract 3/28 from 70/72
70/72 - 3/28 is 109/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
3/28 = 3 × 18/28 × 18 = 54/504 - Subtract the two like fractions:
490/504 - 54/504 = 490 - 54/504 = 436/504 - After reducing the fraction, the answer is 109/126
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