Subtract 9/49 from 45/40, Solve 1 5/40

Subtract 9/49 from 45/40

1^st number: 1 5/40, 2^nd number: 9/49

45/40 - 9/49 is 369/392.

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,
45/40 = 45 × 49/40 × 49 = 2205/1960
Likewise, for the 2nd fraction, since 49 × 40 = 1960,
9/49 = 9 × 40/49 × 40 = 360/1960
Subtract the two like fractions:
2205/1960 - 360/1960 = 2205 - 360/1960 = 1845/1960
After reducing the fraction, the answer is 369/392

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