Add 84/12 and 18/45
1st number: 7 0/12, 2nd number: 18/45
84/12 + 18/45 is 37/5.
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,
18/45 = 18 × 4/45 × 4 = 72/180 - Add the two like fractions:
1260/180 + 72/180 = 1260 + 72/180 = 1332/180 - 1332/180 simplified gives 37/5
- So, 84/12 + 18/45 = 37/5
In mixed form: 72/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+36/45 84/24+18/45 84/12+18/90 84/12+54/45 84/36+18/45 84/12+90/45 84/60+18/45