Subtract 84/16 from 30/28
1st number: 1 2/28, 2nd number: 5 4/16
30/28 - 84/16 is -117/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
30/28 = 30 × 4/28 × 4 = 120/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
84/16 = 84 × 7/16 × 7 = 588/112 - Subtract the two like fractions:
120/112 - 588/112 = 120 - 588/112 = -468/112 - After reducing the fraction, the answer is -117/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-84/16 30/56-84/16 30/28-84/32 90/28-84/16 30/84-84/16 30/28-84/48 30/28-84/80