Subtract 18/12 from 90/50, Solve 1 40/50

Subtract 18/12 from 90/50

1^st number: 1 40/50, 2^nd number: 1 6/12

90/50 - 18/12 is 3/10.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 50 × 6 = 300,
90/50 = 90 × 6/50 × 6 = 540/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
18/12 = 18 × 25/12 × 25 = 450/300
Subtract the two like fractions:
540/300 - 450/300 = 540 - 450/300 = 90/300
After reducing the fraction, the answer is 3/10

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