Add 84/12 and 45/15
1st number: 7 0/12, 2nd number: 3 0/15
84/12 + 45/15 is 10/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
45/15 = 45 × 4/15 × 4 = 180/60 - Add the two like fractions:
420/60 + 180/60 = 420 + 180/60 = 600/60 - 600/60 simplified gives 10/1
- So, 84/12 + 45/15 = 10/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+90/15 84/24+45/15 84/12+45/30 84/36+45/15 84/60+45/15 84/12+45/75