Add 42/9 and 25/80, Solve 4 6/9 + 25/80 as a fraction

Add 42/9 and 25/80

1^st number: 4 6/9, 2^nd number: 25/80

42/9 + 25/80 is 239/48.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 9 × 80 = 720,
42/9 = 42 × 80/9 × 80 = 3360/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
25/80 = 25 × 9/80 × 9 = 225/720
Add the two like fractions:
3360/720 + 225/720 = 3360 + 225/720 = 3585/720
3585/720 simplified gives 239/48
So, 42/9 + 25/80 = 239/48
In mixed form: 447/48

MathStep (Works offline)

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