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

Add 7/80 and 63/7

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

7/80 + 63/7 is 727/80.

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

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
7/80 = 7 × 7/80 × 7 = 49/560
Likewise, for the 2nd fraction, since 7 × 80 = 560,
63/7 = 63 × 80/7 × 80 = 5040/560
Add the two like fractions:
49/560 + 5040/560 = 49 + 5040/560 = 5089/560
5089/560 simplified gives 727/80
So, 7/80 + 63/7 = 727/80
In mixed form: 97/80

MathStep (Works offline)

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