Subtract 81/75 from 4/10, Solve 4/10

Subtract 81/75 from 4/10

1^st number: 4/10, 2^nd number: 1 6/75

4/10 - 81/75 is -17/25.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 75 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 10 × 15 = 150,
4/10 = 4 × 15/10 × 15 = 60/150
Likewise, for the 2nd fraction, since 75 × 2 = 150,
81/75 = 81 × 2/75 × 2 = 162/150
Subtract the two like fractions:
60/150 - 162/150 = 60 - 162/150 = -102/150
After reducing the fraction, the answer is -17/25

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