Add 30/2 and 84/40
1st number: 15 0/2, 2nd number: 2 4/40
30/2 + 84/40 is 171/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
30/2 = 30 × 20/2 × 20 = 600/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
84/40 = 84 × 1/40 × 1 = 84/40 - Add the two like fractions:
600/40 + 84/40 = 600 + 84/40 = 684/40 - 684/40 simplified gives 171/10
- So, 30/2 + 84/40 = 171/10
In mixed form: 171/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2+84/40 30/4+84/40 30/2+84/80 90/2+84/40 30/6+84/40 30/10+84/40 30/14+84/40