Add 84/12 and 2/90
1st number: 7 0/12, 2nd number: 2/90
84/12 + 2/90 is 316/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 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 90 × 2 = 180,
2/90 = 2 × 2/90 × 2 = 4/180 - Add the two like fractions:
1260/180 + 4/180 = 1260 + 4/180 = 1264/180 - 1264/180 simplified gives 316/45
- So, 84/12 + 2/90 = 316/45
In mixed form: 71/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+4/90 84/24+2/90 84/12+6/90 84/36+2/90 84/12+10/90 84/60+2/90 84/12+14/90