Subtract 45/49 from 18/25
18/25 - 45/49 is -243/1225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 49 is 1225
Next, find the equivalent fraction of both fractional numbers with denominator 1225 - For the 1st fraction, since 25 × 49 = 1225,
18/25 = 18 × 49/25 × 49 = 882/1225 - Likewise, for the 2nd fraction, since 49 × 25 = 1225,
45/49 = 45 × 25/49 × 25 = 1125/1225 - Subtract the two like fractions:
882/1225 - 1125/1225 = 882 - 1125/1225 = -243/1225
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