Subtract 45/18 from 30/49, Solve 30/49

Subtract 45/18 from 30/49

1^st number: 30/49, 2^nd number: 2 9/18

30/49 - 45/18 is -185/98.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 18 is 882

Next, find the equivalent fraction of both fractional numbers with denominator 882
For the 1st fraction, since 49 × 18 = 882,
30/49 = 30 × 18/49 × 18 = 540/882
Likewise, for the 2nd fraction, since 18 × 49 = 882,
45/18 = 45 × 49/18 × 49 = 2205/882
Subtract the two like fractions:
540/882 - 2205/882 = 540 - 2205/882 = -1665/882
After reducing the fraction, the answer is -185/98

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