Subtract 70/45 from 5/40, Solve 5/40

Subtract 70/45 from 5/40

1^st number: 5/40, 2^nd number: 1 25/45

5/40 - 70/45 is -103/72.

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,
5/40 = 5 × 9/40 × 9 = 45/360
Likewise, for the 2nd fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360
Subtract the two like fractions:
45/360 - 560/360 = 45 - 560/360 = -515/360
After reducing the fraction, the answer is -103/72

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