Add 40/84 and 2/30
40/84 + 2/30 is 19/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
2/30 = 2 × 14/30 × 14 = 28/420 - Add the two like fractions:
200/420 + 28/420 = 200 + 28/420 = 228/420 - 228/420 simplified gives 19/35
- So, 40/84 + 2/30 = 19/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84+2/30 40/84+4/30 40/84+2/60 40/84+6/30 40/84+2/90 40/84+10/30 40/84+14/30