Subtract 72/45 from 14/40, Solve 14/40

Subtract 72/45 from 14/40

1^st number: 14/40, 2^nd number: 1 27/45

14/40 - 72/45 is -5/4.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 40 × 9 = 360,
14/40 = 14 × 9/40 × 9 = 126/360
Likewise, for the 2nd fraction, since 45 × 8 = 360,
72/45 = 72 × 8/45 × 8 = 576/360
Subtract the two like fractions:
126/360 - 576/360 = 126 - 576/360 = -450/360
After reducing the fraction, the answer is -5/4

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