Add 28/10 and 70/8
1st number: 2 8/10, 2nd number: 8 6/8
28/10 + 70/8 is 231/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
28/10 = 28 × 4/10 × 4 = 112/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
70/8 = 70 × 5/8 × 5 = 350/40 - Add the two like fractions:
112/40 + 350/40 = 112 + 350/40 = 462/40 - 462/40 simplified gives 231/20
- So, 28/10 + 70/8 = 231/20
In mixed form: 1111/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+70/8 28/20+70/8 28/10+70/16 84/10+70/8 28/30+70/8 28/10+70/24 28/50+70/8 28/10+70/40 28/70+70/8 28/10+70/56