Add 28/4 and 70/40
1st number: 7 0/4, 2nd number: 1 30/40
28/4 + 70/40 is 35/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
28/4 = 28 × 10/4 × 10 = 280/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Add the two like fractions:
280/40 + 70/40 = 280 + 70/40 = 350/40 - 350/40 simplified gives 35/4
- So, 28/4 + 70/40 = 35/4
In mixed form: 83/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+70/40 28/8+70/40 28/4+70/80 84/4+70/40 28/12+70/40 28/20+70/40