Subtract 3/10 from 90/50, Solve 1 40/50

Subtract 3/10 from 90/50

1^st number: 1 40/50, 2^nd number: 3/10

90/50 - 3/10 is 3/2.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 10 is 50

Next, find the equivalent fraction of both fractional numbers with denominator 50
For the 1st fraction, since 50 × 1 = 50,
90/50 = 90 × 1/50 × 1 = 90/50
Likewise, for the 2nd fraction, since 10 × 5 = 50,
3/10 = 3 × 5/10 × 5 = 15/50
Subtract the two like fractions:
90/50 - 15/50 = 90 - 15/50 = 75/50
After reducing the fraction, the answer is 3/2
In mixed form: 11/2

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