Subtract 4/50 from 1/81, Solve 1/81

Subtract 4/50 from 1/81

1/81 - 4/50 is -137/2025.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050

Next, find the equivalent fraction of both fractional numbers with denominator 4050
For the 1st fraction, since 81 × 50 = 4050,
1/81 = 1 × 50/81 × 50 = 50/4050
Likewise, for the 2nd fraction, since 50 × 81 = 4050,
4/50 = 4 × 81/50 × 81 = 324/4050
Subtract the two like fractions:
50/4050 - 324/4050 = 50 - 324/4050 = -274/4050
After reducing the fraction, the answer is -137/2025

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