Subtract 9/49 from 18/72
18/72 - 9/49 is 13/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 49 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 72 × 49 = 3528,
18/72 = 18 × 49/72 × 49 = 882/3528 - Likewise, for the 2nd fraction, since 49 × 72 = 3528,
9/49 = 9 × 72/49 × 72 = 648/3528 - Subtract the two like fractions:
882/3528 - 648/3528 = 882 - 648/3528 = 234/3528 - After reducing the fraction, the answer is 13/196
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