Subtract 75/70 from 7/98, Solve 7/98

Subtract 75/70 from 7/98

1^st number: 7/98, 2^nd number: 1 5/70

7/98 - 75/70 is -1/1.

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,
7/98 = 7 × 5/98 × 5 = 35/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
75/70 = 75 × 7/70 × 7 = 525/490
Subtract the two like fractions:
35/490 - 525/490 = 35 - 525/490 = -490/490
After reducing the fraction, the answer is -1/1

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