Subtract 49/28 from 4/45, Solve 4/45

Subtract 49/28 from 4/45

1^st number: 4/45, 2^nd number: 1 21/28

4/45 - 49/28 is -299/180.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 45 × 28 = 1260,
4/45 = 4 × 28/45 × 28 = 112/1260
Likewise, for the 2nd fraction, since 28 × 45 = 1260,
49/28 = 49 × 45/28 × 45 = 2205/1260
Subtract the two like fractions:
112/1260 - 2205/1260 = 112 - 2205/1260 = -2093/1260
After reducing the fraction, the answer is -299/180

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