Subtract 45/70 from 50/98, Solve 50/98

Subtract 45/70 from 50/98

50/98 - 45/70 is -13/98.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 98 × 5 = 490,
50/98 = 50 × 5/98 × 5 = 250/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
45/70 = 45 × 7/70 × 7 = 315/490
Subtract the two like fractions:
250/490 - 315/490 = 250 - 315/490 = -65/490
After reducing the fraction, the answer is -13/98

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