Add 70/40 and 14/28
1st number: 1 30/40, 2nd number: 14/28
70/40 + 14/28 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
14/28 = 14 × 10/28 × 10 = 140/280 - Add the two like fractions:
490/280 + 140/280 = 490 + 140/280 = 630/280 - 630/280 simplified gives 9/4
- So, 70/40 + 14/28 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+14/28 70/40+14/56 70/40+42/28 70/40+14/84 70/40+70/28 70/40+98/28