Add 28/10 and 45/7
1st number: 2 8/10, 2nd number: 6 3/7
28/10 + 45/7 is 323/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
28/10 = 28 × 7/10 × 7 = 196/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
45/7 = 45 × 10/7 × 10 = 450/70 - Add the two like fractions:
196/70 + 450/70 = 196 + 450/70 = 646/70 - 646/70 simplified gives 323/35
- So, 28/10 + 45/7 = 323/35
In mixed form: 98/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+45/7 28/10+90/7 28/20+45/7 28/10+45/14 84/10+45/7 28/30+45/7 28/10+45/21 28/50+45/7 28/10+45/35 28/70+45/7 28/10+45/49