Subtract 80/49 from 10/45, Solve 10/45

Subtract 80/49 from 10/45

1^st number: 10/45, 2^nd number: 1 31/49

10/45 - 80/49 is -622/441.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 49 is 2205

Next, find the equivalent fraction of both fractional numbers with denominator 2205
For the 1st fraction, since 45 × 49 = 2205,
10/45 = 10 × 49/45 × 49 = 490/2205
Likewise, for the 2nd fraction, since 49 × 45 = 2205,
80/49 = 80 × 45/49 × 45 = 3600/2205
Subtract the two like fractions:
490/2205 - 3600/2205 = 490 - 3600/2205 = -3110/2205
After reducing the fraction, the answer is -622/441

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