Add 42/9 and 28/60
1st number: 4 6/9, 2nd number: 28/60
42/9 + 28/60 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
42/9 = 42 × 20/9 × 20 = 840/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
28/60 = 28 × 3/60 × 3 = 84/180 - Add the two like fractions:
840/180 + 84/180 = 840 + 84/180 = 924/180 - 924/180 simplified gives 77/15
- So, 42/9 + 28/60 = 77/15
In mixed form: 52/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+28/60 42/9+56/60 42/18+28/60 42/9+84/60 42/27+28/60 42/45+28/60 42/63+28/60