Add 54/12 and 40/45
1st number: 4 6/12, 2nd number: 40/45
54/12 + 40/45 is 97/18.
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,
54/12 = 54 × 15/12 × 15 = 810/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
40/45 = 40 × 4/45 × 4 = 160/180 - Add the two like fractions:
810/180 + 160/180 = 810 + 160/180 = 970/180 - 970/180 simplified gives 97/18
- So, 54/12 + 40/45 = 97/18
In mixed form: 57/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12+80/45 54/24+40/45 54/12+40/90 54/36+40/45 54/60+40/45 54/84+40/45