Add 45/90 and 10/12
45/90 + 10/12 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
10/12 = 10 × 15/12 × 15 = 150/180 - Add the two like fractions:
90/180 + 150/180 = 90 + 150/180 = 240/180 - 240/180 simplified gives 4/3
- So, 45/90 + 10/12 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90+20/12 45/90+10/24 45/90+30/12 45/90+10/36 45/90+50/12 45/90+10/60 45/90+70/12 45/90+10/84