Add 45/90 and 45/30
1st number: 45/90, 2nd number: 1 15/30
45/90 + 45/30 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 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 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90 - Add the two like fractions:
45/90 + 135/90 = 45 + 135/90 = 180/90 - 180/90 simplified gives 2/1
- So, 45/90 + 45/30 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90+90/30 45/90+45/60 45/90+45/90