Subtract 7/9 from 2/28, Solve 2/28

Subtract 7/9 from 2/28

2/28 - 7/9 is -89/126.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 28 × 9 = 252,
2/28 = 2 × 9/28 × 9 = 18/252
Likewise, for the 2nd fraction, since 9 × 28 = 252,
7/9 = 7 × 28/9 × 28 = 196/252
Subtract the two like fractions:
18/252 - 196/252 = 18 - 196/252 = -178/252
After reducing the fraction, the answer is -89/126

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