Add 42/45 and 80/6
1st number: 42/45, 2nd number: 13 2/6
42/45 + 80/6 is 214/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
80/6 = 80 × 15/6 × 15 = 1200/90 - Add the two like fractions:
84/90 + 1200/90 = 84 + 1200/90 = 1284/90 - 1284/90 simplified gives 214/15
- So, 42/45 + 80/6 = 214/15
In mixed form: 144/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+80/6 42/90+80/6 42/45+80/12 42/45+80/18 42/45+80/30 42/45+80/42