Add 12/18 and 98/72
1st number: 12/18, 2nd number: 1 26/72
12/18 + 98/72 is 73/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
12/18 = 12 × 4/18 × 4 = 48/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
98/72 = 98 × 1/72 × 1 = 98/72 - Add the two like fractions:
48/72 + 98/72 = 48 + 98/72 = 146/72 - 146/72 simplified gives 73/36
- So, 12/18 + 98/72 = 73/36
In mixed form: 21/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+98/72 12/36+98/72 36/18+98/72 12/54+98/72 60/18+98/72 12/90+98/72 84/18+98/72