Add 45/90 and 45/3
1st number: 45/90, 2nd number: 15 0/3
45/90 + 45/3 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 3 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Likewise, for the 2nd fraction, since 3 × 30 = 90,
45/3 = 45 × 30/3 × 30 = 1350/90 - Add the two like fractions:
45/90 + 1350/90 = 45 + 1350/90 = 1395/90 - 1395/90 simplified gives 31/2
- So, 45/90 + 45/3 = 31/2
In mixed form: 151/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90+90/3 45/90+45/6 45/90+45/9 45/90+45/15 45/90+45/21