Add 28/70 and 40/75
28/70 + 40/75 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 70 × 15 = 1050,
28/70 = 28 × 15/70 × 15 = 420/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
40/75 = 40 × 14/75 × 14 = 560/1050 - Add the two like fractions:
420/1050 + 560/1050 = 420 + 560/1050 = 980/1050 - 980/1050 simplified gives 14/15
- So, 28/70 + 40/75 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+40/75 28/70+80/75 84/70+40/75