Add 9/40 and 84/10
1st number: 9/40, 2nd number: 8 4/10
9/40 + 84/10 is 69/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
84/10 = 84 × 4/10 × 4 = 336/40 - Add the two like fractions:
9/40 + 336/40 = 9 + 336/40 = 345/40 - 345/40 simplified gives 69/8
- So, 9/40 + 84/10 = 69/8
In mixed form: 85/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40+84/10 9/80+84/10 9/40+84/20 27/40+84/10 9/40+84/30 45/40+84/10 9/40+84/50 63/40+84/10 9/40+84/70