Add 28/4 and 8/80
1st number: 7 0/4, 2nd number: 8/80
28/4 + 8/80 is 71/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
28/4 = 28 × 20/4 × 20 = 560/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
8/80 = 8 × 1/80 × 1 = 8/80 - Add the two like fractions:
560/80 + 8/80 = 560 + 8/80 = 568/80 - 568/80 simplified gives 71/10
- So, 28/4 + 8/80 = 71/10
In mixed form: 71/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+8/80 28/4+16/80 28/8+8/80 84/4+8/80 28/4+24/80 28/12+8/80 28/4+40/80 28/20+8/80 28/4+56/80