Subtract 3/40 from 81/49, Solve 1 32/49

Subtract 3/40 from 81/49

1^st number: 1 32/49, 2^nd number: 3/40

81/49 - 3/40 is 3093/1960.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 40 is 1960

Next, find the equivalent fraction of both fractional numbers with denominator 1960
For the 1st fraction, since 49 × 40 = 1960,
81/49 = 81 × 40/49 × 40 = 3240/1960
Likewise, for the 2nd fraction, since 40 × 49 = 1960,
3/40 = 3 × 49/40 × 49 = 147/1960
Subtract the two like fractions:
3240/1960 - 147/1960 = 3240 - 147/1960 = 3093/1960
In mixed form: 11133/1960

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