Subtract 42/45 from 80/98
80/98 - 42/45 is -86/735.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 45 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
80/98 = 80 × 45/98 × 45 = 3600/4410 - Likewise, for the 2nd fraction, since 45 × 98 = 4410,
42/45 = 42 × 98/45 × 98 = 4116/4410 - Subtract the two like fractions:
3600/4410 - 4116/4410 = 3600 - 4116/4410 = -516/4410 - After reducing the fraction, the answer is -86/735
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