Add 84/15 and 75/12
1st number: 5 9/15, 2nd number: 6 3/12
84/15 + 75/12 is 237/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
84/15 = 84 × 4/15 × 4 = 336/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
75/12 = 75 × 5/12 × 5 = 375/60 - Add the two like fractions:
336/60 + 375/60 = 336 + 375/60 = 711/60 - 711/60 simplified gives 237/20
- So, 84/15 + 75/12 = 237/20
In mixed form: 1117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+75/12 84/15+75/24 84/45+75/12 84/15+75/36 84/75+75/12 84/15+75/60 84/15+75/84