Subtract 18/49 from 63/40, Solve 1 23/40

Subtract 18/49 from 63/40

1^st number: 1 23/40, 2^nd number: 18/49

63/40 - 18/49 is 2367/1960.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1960
For the 1st fraction, since 40 × 49 = 1960,
63/40 = 63 × 49/40 × 49 = 3087/1960
Likewise, for the 2nd fraction, since 49 × 40 = 1960,
18/49 = 18 × 40/49 × 40 = 720/1960
Subtract the two like fractions:
3087/1960 - 720/1960 = 3087 - 720/1960 = 2367/1960
In mixed form: 1407/1960

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