Add 9/20 and 84/40
1st number: 9/20, 2nd number: 2 4/40
9/20 + 84/40 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
9/20 = 9 × 2/20 × 2 = 18/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
84/40 = 84 × 1/40 × 1 = 84/40 - Add the two like fractions:
18/40 + 84/40 = 18 + 84/40 = 102/40 - 102/40 simplified gives 51/20
- So, 9/20 + 84/40 = 51/20
In mixed form: 211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20+84/40 9/40+84/40 9/20+84/80 27/20+84/40 9/60+84/40 45/20+84/40 63/20+84/40