Add 84/12 and 6/45
1st number: 7 0/12, 2nd number: 6/45
84/12 + 6/45 is 107/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
84/12 = 84 × 15/12 × 15 = 1260/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
6/45 = 6 × 4/45 × 4 = 24/180 - Add the two like fractions:
1260/180 + 24/180 = 1260 + 24/180 = 1284/180 - 1284/180 simplified gives 107/15
- So, 84/12 + 6/45 = 107/15
In mixed form: 72/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+12/45 84/24+6/45 84/12+6/90 84/12+18/45 84/36+6/45 84/12+30/45 84/60+6/45 84/12+42/45