Subtract 18/30 from 28/49
28/49 - 18/30 is -1/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 49 × 30 = 1470,
28/49 = 28 × 30/49 × 30 = 840/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
18/30 = 18 × 49/30 × 49 = 882/1470 - Subtract the two like fractions:
840/1470 - 882/1470 = 840 - 882/1470 = -42/1470 - After reducing the fraction, the answer is -1/35
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