Subtract 18/72 from 70/49
1st number: 1 21/49, 2nd number: 18/72
70/49 - 18/72 is 33/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
70/49 = 70 × 72/49 × 72 = 5040/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
18/72 = 18 × 49/72 × 49 = 882/3528 - Subtract the two like fractions:
5040/3528 - 882/3528 = 5040 - 882/3528 = 4158/3528 - After reducing the fraction, the answer is 33/28
- In mixed form: 15/28
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