Add 14/12 and 90/45
1st number: 1 2/12, 2nd number: 2 0/45
14/12 + 90/45 is 19/6.
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,
14/12 = 14 × 15/12 × 15 = 210/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
90/45 = 90 × 4/45 × 4 = 360/180 - Add the two like fractions:
210/180 + 360/180 = 210 + 360/180 = 570/180 - 570/180 simplified gives 19/6
- So, 14/12 + 90/45 = 19/6
In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/12+90/45 14/24+90/45 42/12+90/45 14/36+90/45 70/12+90/45 14/60+90/45 98/12+90/45 14/84+90/45