Add 20/12 and 98/45
1st number: 1 8/12, 2nd number: 2 8/45
20/12 + 98/45 is 173/45.
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,
20/12 = 20 × 15/12 × 15 = 300/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
98/45 = 98 × 4/45 × 4 = 392/180 - Add the two like fractions:
300/180 + 392/180 = 300 + 392/180 = 692/180 - 692/180 simplified gives 173/45
- So, 20/12 + 98/45 = 173/45
In mixed form: 338/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+98/45 20/24+98/45 20/12+98/90 60/12+98/45 20/36+98/45 20/60+98/45 20/84+98/45