Add 45/20 and 9/84
1st number: 2 5/20, 2nd number: 9/84
45/20 + 9/84 is 33/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
45/20 = 45 × 21/20 × 21 = 945/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
9/84 = 9 × 5/84 × 5 = 45/420 - Add the two like fractions:
945/420 + 45/420 = 945 + 45/420 = 990/420 - 990/420 simplified gives 33/14
- So, 45/20 + 9/84 = 33/14
In mixed form: 25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+9/84 45/20+18/84 45/40+9/84 45/20+27/84 45/60+9/84 45/20+45/84 45/20+63/84