Add 98/12 and 21/40
1st number: 8 2/12, 2nd number: 21/40
98/12 + 21/40 is 1043/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
98/12 = 98 × 10/12 × 10 = 980/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Add the two like fractions:
980/120 + 63/120 = 980 + 63/120 = 1043/120 - So, 98/12 + 21/40 = 1043/120
In mixed form: 883/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12+42/40 98/24+21/40 98/12+21/80 98/12+63/40 98/36+21/40 98/60+21/40 98/84+21/40