Add 7/84 and 35/20
1st number: 7/84, 2nd number: 1 15/20
7/84 + 35/20 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
7/84 = 7 × 5/84 × 5 = 35/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
35/20 = 35 × 21/20 × 21 = 735/420 - Add the two like fractions:
35/420 + 735/420 = 35 + 735/420 = 770/420 - 770/420 simplified gives 11/6
- So, 7/84 + 35/20 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84+35/20 7/84+70/20 7/84+35/40 21/84+35/20 7/84+35/60 35/84+35/20 49/84+35/20