Add 25/20 and 6/80, Solve 1 5/20 + 6/80 as a fraction

Add 25/20 and 6/80

1^st number: 1 5/20, 2^nd number: 6/80

25/20 + 6/80 is 53/40.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 20 × 4 = 80,
25/20 = 25 × 4/20 × 4 = 100/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
6/80 = 6 × 1/80 × 1 = 6/80
Add the two like fractions:
100/80 + 6/80 = 100 + 6/80 = 106/80
106/80 simplified gives 53/40
So, 25/20 + 6/80 = 53/40
In mixed form: 113/40

MathStep (Works offline)

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