Subtract 98/24 from 9/20, Solve 9/20

Subtract 98/24 from 9/20

1^st number: 9/20, 2^nd number: 4 2/24

9/20 - 98/24 is -109/30.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 20 × 6 = 120,
9/20 = 9 × 6/20 × 6 = 54/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
98/24 = 98 × 5/24 × 5 = 490/120
Subtract the two like fractions:
54/120 - 490/120 = 54 - 490/120 = -436/120
After reducing the fraction, the answer is -109/30

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