Add 28/40 and 14/70
28/40 + 14/70 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
28/40 = 28 × 7/40 × 7 = 196/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
14/70 = 14 × 4/70 × 4 = 56/280 - Add the two like fractions:
196/280 + 56/280 = 196 + 56/280 = 252/280 - 252/280 simplified gives 9/10
- So, 28/40 + 14/70 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+14/70 28/40+28/70 28/80+14/70 84/40+14/70 28/40+42/70 28/40+98/70