Subtract 21/9 from 25/50, Solve 25/50

Subtract 21/9 from 25/50

1^st number: 25/50, 2^nd number: 2 3/9

25/50 - 21/9 is -11/6.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 9 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 50 × 9 = 450,
25/50 = 25 × 9/50 × 9 = 225/450
Likewise, for the 2nd fraction, since 9 × 50 = 450,
21/9 = 21 × 50/9 × 50 = 1050/450
Subtract the two like fractions:
225/450 - 1050/450 = 225 - 1050/450 = -825/450
After reducing the fraction, the answer is -11/6

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