Add 63/7 and 4/80, Solve 9 0/7 + 4/80 as a fraction

Add 63/7 and 4/80

1^st number: 9 0/7, 2^nd number: 4/80

63/7 + 4/80 is 181/20.

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,
63/7 = 63 × 80/7 × 80 = 5040/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
4/80 = 4 × 7/80 × 7 = 28/560
Add the two like fractions:
5040/560 + 28/560 = 5040 + 28/560 = 5068/560
5068/560 simplified gives 181/20
So, 63/7 + 4/80 = 181/20
In mixed form: 91/20

MathStep (Works offline)

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