Add 7/4 and 70/8
1st number: 1 3/4, 2nd number: 8 6/8
7/4 + 70/8 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
7/4 = 7 × 2/4 × 2 = 14/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
70/8 = 70 × 1/8 × 1 = 70/8 - Add the two like fractions:
14/8 + 70/8 = 14 + 70/8 = 84/8 - 84/8 simplified gives 21/2
- So, 7/4 + 70/8 = 21/2
In mixed form: 101/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4+70/8 7/8+70/8 7/4+70/16 21/4+70/8 7/12+70/8 7/4+70/24 35/4+70/8 7/20+70/8 7/4+70/40 49/4+70/8 7/28+70/8 7/4+70/56