Add 70/8 and 30/15
1st number: 8 6/8, 2nd number: 2 0/15
70/8 + 30/15 is 43/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
70/8 = 70 × 15/8 × 15 = 1050/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
30/15 = 30 × 8/15 × 8 = 240/120 - Add the two like fractions:
1050/120 + 240/120 = 1050 + 240/120 = 1290/120 - 1290/120 simplified gives 43/4
- So, 70/8 + 30/15 = 43/4
In mixed form: 103/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8+60/15 70/16+30/15 70/8+90/15 70/24+30/15 70/8+30/45 70/40+30/15 70/8+30/75 70/56+30/15