Subtract 54/16 from 9/84, Solve 9/84

Subtract 54/16 from 9/84

1^st number: 9/84, 2^nd number: 3 6/16

9/84 - 54/16 is -183/56.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 84 × 4 = 336,
9/84 = 9 × 4/84 × 4 = 36/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
54/16 = 54 × 21/16 × 21 = 1134/336
Subtract the two like fractions:
36/336 - 1134/336 = 36 - 1134/336 = -1098/336
After reducing the fraction, the answer is -183/56

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad