Add 98/40 and 28/20
1st number: 2 18/40, 2nd number: 1 8/20
98/40 + 28/20 is 77/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
98/40 = 98 × 1/40 × 1 = 98/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
28/20 = 28 × 2/20 × 2 = 56/40 - Add the two like fractions:
98/40 + 56/40 = 98 + 56/40 = 154/40 - 154/40 simplified gives 77/20
- So, 98/40 + 28/20 = 77/20
In mixed form: 317/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40+56/20 98/80+28/20 98/40+28/40 98/40+84/20 98/40+28/60