Subtract 28/14 from 1/45, Solve 1/45

Subtract 28/14 from 1/45

1^st number: 1/45, 2^nd number: 2 0/14

1/45 - 28/14 is -89/45.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
1/45 = 1 × 14/45 × 14 = 14/630
Likewise, for the 2nd fraction, since 14 × 45 = 630,
28/14 = 28 × 45/14 × 45 = 1260/630
Subtract the two like fractions:
14/630 - 1260/630 = 14 - 1260/630 = -1246/630
After reducing the fraction, the answer is -89/45

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