Add 84/4 and 15/60
1st number: 21 0/4, 2nd number: 15/60
84/4 + 15/60 is 85/4.
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,
15/60 = 15 × 1/60 × 1 = 15/60 - Add the two like fractions:
1260/60 + 15/60 = 1260 + 15/60 = 1275/60 - 1275/60 simplified gives 85/4
- So, 84/4 + 15/60 = 85/4
In mixed form: 211/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+30/60 84/8+15/60 84/4+45/60 84/12+15/60 84/4+75/60 84/20+15/60 84/28+15/60