Add 50/40 and 70/28
1st number: 1 10/40, 2nd number: 2 14/28
50/40 + 70/28 is 15/4.
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,
50/40 = 50 × 7/40 × 7 = 350/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
70/28 = 70 × 10/28 × 10 = 700/280 - Add the two like fractions:
350/280 + 700/280 = 350 + 700/280 = 1050/280 - 1050/280 simplified gives 15/4
- So, 50/40 + 70/28 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+70/28 50/40+70/56 50/40+70/84