Subtract 80/49 from 25/50, Solve 25/50

Subtract 80/49 from 25/50

1^st number: 25/50, 2^nd number: 1 31/49

25/50 - 80/49 is -111/98.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 49 is 2450

Next, find the equivalent fraction of both fractional numbers with denominator 2450
For the 1st fraction, since 50 × 49 = 2450,
25/50 = 25 × 49/50 × 49 = 1225/2450
Likewise, for the 2nd fraction, since 49 × 50 = 2450,
80/49 = 80 × 50/49 × 50 = 4000/2450
Subtract the two like fractions:
1225/2450 - 4000/2450 = 1225 - 4000/2450 = -2775/2450
After reducing the fraction, the answer is -111/98

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