Add 98/8 and 28/40
1st number: 12 2/8, 2nd number: 28/40
98/8 + 28/40 is 259/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
98/8 = 98 × 5/8 × 5 = 490/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Add the two like fractions:
490/40 + 28/40 = 490 + 28/40 = 518/40 - 518/40 simplified gives 259/20
- So, 98/8 + 28/40 = 259/20
In mixed form: 1219/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/8+56/40 98/16+28/40 98/8+28/80 98/8+84/40 98/24+28/40 98/40+28/40 98/56+28/40