Subtract 90/50 from 72/10, Solve 7 2/10

Subtract 90/50 from 72/10

1^st number: 7 2/10, 2^nd number: 1 40/50

72/10 - 90/50 is 27/5.

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

Next, find the equivalent fraction of both fractional numbers with denominator 50
For the 1st fraction, since 10 × 5 = 50,
72/10 = 72 × 5/10 × 5 = 360/50
Likewise, for the 2nd fraction, since 50 × 1 = 50,
90/50 = 90 × 1/50 × 1 = 90/50
Subtract the two like fractions:
360/50 - 90/50 = 360 - 90/50 = 270/50
After reducing the fraction, the answer is 27/5
In mixed form: 52/5

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