Add 9/12 and 24/45
9/12 + 24/45 is 77/60.
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,
9/12 = 9 × 15/12 × 15 = 135/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
24/45 = 24 × 4/45 × 4 = 96/180 - Add the two like fractions:
135/180 + 96/180 = 135 + 96/180 = 231/180 - 231/180 simplified gives 77/60
- So, 9/12 + 24/45 = 77/60
In mixed form: 117/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12+24/45 9/12+48/45 9/24+24/45 9/12+24/90 27/12+24/45 9/12+72/45 9/36+24/45 45/12+24/45 9/60+24/45 63/12+24/45 9/84+24/45