Subtract 63/10 from 90/24, Solve 3 18/24

Subtract 63/10 from 90/24

1^st number: 3 18/24, 2^nd number: 6 3/10

90/24 - 63/10 is -51/20.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 10 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 24 × 5 = 120,
90/24 = 90 × 5/24 × 5 = 450/120
Likewise, for the 2nd fraction, since 10 × 12 = 120,
63/10 = 63 × 12/10 × 12 = 756/120
Subtract the two like fractions:
450/120 - 756/120 = 450 - 756/120 = -306/120
After reducing the fraction, the answer is -51/20

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