Add 28/7 and 10/80, Solve 4 0/7 + 10/80 as a fraction

Add 28/7 and 10/80

1^st number: 4 0/7, 2^nd number: 10/80

28/7 + 10/80 is 33/8.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 7 × 80 = 560,
28/7 = 28 × 80/7 × 80 = 2240/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
10/80 = 10 × 7/80 × 7 = 70/560
Add the two like fractions:
2240/560 + 70/560 = 2240 + 70/560 = 2310/560
2310/560 simplified gives 33/8
So, 28/7 + 10/80 = 33/8
In mixed form: 41/8

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad