Subtract 50/9 from 15/40, Solve 15/40

Subtract 50/9 from 15/40

1^st number: 15/40, 2^nd number: 5 5/9

15/40 - 50/9 is -373/72.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 40 × 9 = 360,
15/40 = 15 × 9/40 × 9 = 135/360
Likewise, for the 2nd fraction, since 9 × 40 = 360,
50/9 = 50 × 40/9 × 40 = 2000/360
Subtract the two like fractions:
135/360 - 2000/360 = 135 - 2000/360 = -1865/360
After reducing the fraction, the answer is -373/72

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