Add 3/30 and 84/40
1st number: 3/30, 2nd number: 2 4/40
3/30 + 84/40 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
3/30 = 3 × 4/30 × 4 = 12/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
84/40 = 84 × 3/40 × 3 = 252/120 - Add the two like fractions:
12/120 + 252/120 = 12 + 252/120 = 264/120 - 264/120 simplified gives 11/5
- So, 3/30 + 84/40 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+84/40 3/60+84/40 3/30+84/80 9/30+84/40 3/90+84/40 15/30+84/40 21/30+84/40