Add 2/84 and 3/40
2/84 + 3/40 is 83/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
2/84 = 2 × 10/84 × 10 = 20/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
3/40 = 3 × 21/40 × 21 = 63/840 - Add the two like fractions:
20/840 + 63/840 = 20 + 63/840 = 83/840 - So, 2/84 + 3/40 = 83/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84+3/40 2/84+6/40 2/84+3/80 6/84+3/40 2/84+9/40 10/84+3/40 2/84+15/40 14/84+3/40 2/84+21/40