Subtract 42/49 from 35/45
35/45 - 42/49 is -5/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 49 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 45 × 49 = 2205,
35/45 = 35 × 49/45 × 49 = 1715/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
42/49 = 42 × 45/49 × 45 = 1890/2205 - Subtract the two like fractions:
1715/2205 - 1890/2205 = 1715 - 1890/2205 = -175/2205 - After reducing the fraction, the answer is -5/63
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