Add 3/4 and 45/30
1st number: 3/4, 2nd number: 1 15/30
3/4 + 45/30 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
3/4 = 3 × 15/4 × 15 = 45/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
45/30 = 45 × 2/30 × 2 = 90/60 - Add the two like fractions:
45/60 + 90/60 = 45 + 90/60 = 135/60 - 135/60 simplified gives 9/4
- So, 3/4 + 45/30 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4+45/30 3/4+90/30 3/8+45/30 3/4+45/60 9/4+45/30 3/12+45/30 3/4+45/90 15/4+45/30 3/20+45/30 21/4+45/30 3/28+45/30