Add 2/5 and 84/40
1st number: 2/5, 2nd number: 2 4/40
2/5 + 84/40 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
2/5 = 2 × 8/5 × 8 = 16/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
84/40 = 84 × 1/40 × 1 = 84/40 - Add the two like fractions:
16/40 + 84/40 = 16 + 84/40 = 100/40 - 100/40 simplified gives 5/2
- So, 2/5 + 84/40 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/5+84/40 2/10+84/40 2/5+84/80 6/5+84/40 2/15+84/40 10/5+84/40 2/25+84/40 14/5+84/40 2/35+84/40