Subtract 72/5 from 30/98, Solve 30/98

Subtract 72/5 from 30/98

1^st number: 30/98, 2^nd number: 14 2/5

30/98 - 72/5 is -3453/245.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 98 × 5 = 490,
30/98 = 30 × 5/98 × 5 = 150/490
Likewise, for the 2nd fraction, since 5 × 98 = 490,
72/5 = 72 × 98/5 × 98 = 7056/490
Subtract the two like fractions:
150/490 - 7056/490 = 150 - 7056/490 = -6906/490
After reducing the fraction, the answer is -3453/245

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