Add 84/4 and 42/60
1st number: 21 0/4, 2nd number: 42/60
84/4 + 42/60 is 217/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
84/4 = 84 × 15/4 × 15 = 1260/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
42/60 = 42 × 1/60 × 1 = 42/60 - Add the two like fractions:
1260/60 + 42/60 = 1260 + 42/60 = 1302/60 - 1302/60 simplified gives 217/10
- So, 84/4 + 42/60 = 217/10
In mixed form: 217/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+84/60 84/8+42/60 84/12+42/60 84/20+42/60 84/28+42/60