Subtract 1/10 from 45/81, Solve 45/81

Subtract 1/10 from 45/81

45/81 - 1/10 is 41/90.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810

Next, find the equivalent fraction of both fractional numbers with denominator 810
For the 1st fraction, since 81 × 10 = 810,
45/81 = 45 × 10/81 × 10 = 450/810
Likewise, for the 2nd fraction, since 10 × 81 = 810,
1/10 = 1 × 81/10 × 81 = 81/810
Subtract the two like fractions:
450/810 - 81/810 = 450 - 81/810 = 369/810
After reducing the fraction, the answer is 41/90

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