Subtract 80/98 from 20/45
20/45 - 80/98 is -164/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 45 × 98 = 4410,
20/45 = 20 × 98/45 × 98 = 1960/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
80/98 = 80 × 45/98 × 45 = 3600/4410 - Subtract the two like fractions:
1960/4410 - 3600/4410 = 1960 - 3600/4410 = -1640/4410 - After reducing the fraction, the answer is -164/441
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