Add 70/28 and 8/40
1st number: 2 14/28, 2nd number: 8/40
70/28 + 8/40 is 27/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
70/28 = 70 × 10/28 × 10 = 700/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Add the two like fractions:
700/280 + 56/280 = 700 + 56/280 = 756/280 - 756/280 simplified gives 27/10
- So, 70/28 + 8/40 = 27/10
In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+16/40 70/56+8/40 70/28+8/80 70/28+24/40 70/84+8/40 70/28+56/40