Subtract 9/49 from 40/36, Solve 1 4/36

Subtract 9/49 from 40/36

1^st number: 1 4/36, 2^nd number: 9/49

40/36 - 9/49 is 409/441.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 49 is 1764

Next, find the equivalent fraction of both fractional numbers with denominator 1764
For the 1st fraction, since 36 × 49 = 1764,
40/36 = 40 × 49/36 × 49 = 1960/1764
Likewise, for the 2nd fraction, since 49 × 36 = 1764,
9/49 = 9 × 36/49 × 36 = 324/1764
Subtract the two like fractions:
1960/1764 - 324/1764 = 1960 - 324/1764 = 1636/1764
After reducing the fraction, the answer is 409/441

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