Subtract 18/30 from 30/98
30/98 - 18/30 is -72/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 98 × 15 = 1470,
30/98 = 30 × 15/98 × 15 = 450/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
18/30 = 18 × 49/30 × 49 = 882/1470 - Subtract the two like fractions:
450/1470 - 882/1470 = 450 - 882/1470 = -432/1470 - After reducing the fraction, the answer is -72/245
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