Subtract 80/45 from 21/49
1st number: 21/49, 2nd number: 1 35/45
21/49 - 80/45 is -85/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
21/49 = 21 × 45/49 × 45 = 945/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
80/45 = 80 × 49/45 × 49 = 3920/2205 - Subtract the two like fractions:
945/2205 - 3920/2205 = 945 - 3920/2205 = -2975/2205 - After reducing the fraction, the answer is -85/63
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