Subtract 70/9 from 28/50, Solve 28/50

Subtract 70/9 from 28/50

1^st number: 28/50, 2^nd number: 7 7/9

28/50 - 70/9 is -1624/225.

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,
28/50 = 28 × 9/50 × 9 = 252/450
Likewise, for the 2nd fraction, since 9 × 50 = 450,
70/9 = 70 × 50/9 × 50 = 3500/450
Subtract the two like fractions:
252/450 - 3500/450 = 252 - 3500/450 = -3248/450
After reducing the fraction, the answer is -1624/225

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