Add 28/8 and 70/10
1st number: 3 4/8, 2nd number: 7 0/10
28/8 + 70/10 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
28/8 = 28 × 5/8 × 5 = 140/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
70/10 = 70 × 4/10 × 4 = 280/40 - Add the two like fractions:
140/40 + 280/40 = 140 + 280/40 = 420/40 - 420/40 simplified gives 21/2
- So, 28/8 + 70/10 = 21/2
In mixed form: 101/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+70/10 28/16+70/10 28/8+70/20 84/8+70/10 28/24+70/10 28/8+70/30 28/40+70/10 28/8+70/50 28/56+70/10