Subtract 18/10 from 72/49
1st number: 1 23/49, 2nd number: 1 8/10
72/49 - 18/10 is -81/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
72/49 = 72 × 10/49 × 10 = 720/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
18/10 = 18 × 49/10 × 49 = 882/490 - Subtract the two like fractions:
720/490 - 882/490 = 720 - 882/490 = -162/490 - After reducing the fraction, the answer is -81/245
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