Add 4/84 and 40/35
1st number: 4/84, 2nd number: 1 5/35
4/84 + 40/35 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
40/35 = 40 × 12/35 × 12 = 480/420 - Add the two like fractions:
20/420 + 480/420 = 20 + 480/420 = 500/420 - 500/420 simplified gives 25/21
- So, 4/84 + 40/35 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+40/35 4/84+80/35 4/84+40/70 12/84+40/35 20/84+40/35 28/84+40/35