Subtract 48/9 from 28/80, Solve 28/80

Subtract 48/9 from 28/80

1^st number: 28/80, 2^nd number: 5 3/9

28/80 - 48/9 is -299/60.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720
Likewise, for the 2nd fraction, since 9 × 80 = 720,
48/9 = 48 × 80/9 × 80 = 3840/720
Subtract the two like fractions:
252/720 - 3840/720 = 252 - 3840/720 = -3588/720
After reducing the fraction, the answer is -299/60

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