Add 72/18 and 98/84
1st number: 4 0/18, 2nd number: 1 14/84
72/18 + 98/84 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
72/18 = 72 × 14/18 × 14 = 1008/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
98/84 = 98 × 3/84 × 3 = 294/252 - Add the two like fractions:
1008/252 + 294/252 = 1008 + 294/252 = 1302/252 - 1302/252 simplified gives 31/6
- So, 72/18 + 98/84 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+98/84 72/54+98/84 72/90+98/84