Add 35/40 and 28/84
35/40 + 28/84 is 29/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
35/40 = 35 × 21/40 × 21 = 735/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
28/84 = 28 × 10/84 × 10 = 280/840 - Add the two like fractions:
735/840 + 280/840 = 735 + 280/840 = 1015/840 - 1015/840 simplified gives 29/24
- So, 35/40 + 28/84 = 29/24
In mixed form: 15/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+28/84 35/40+56/84 35/80+28/84