Add 40/84 and 50/35
1st number: 40/84, 2nd number: 1 15/35
40/84 + 50/35 is 40/21.
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,
40/84 = 40 × 5/84 × 5 = 200/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
50/35 = 50 × 12/35 × 12 = 600/420 - Add the two like fractions:
200/420 + 600/420 = 200 + 600/420 = 800/420 - 800/420 simplified gives 40/21
- So, 40/84 + 50/35 = 40/21
In mixed form: 119/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84+50/35 40/84+50/70