Add 45/15 and 30/8
1st number: 3 0/15, 2nd number: 3 6/8
45/15 + 30/8 is 27/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
45/15 = 45 × 8/15 × 8 = 360/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
30/8 = 30 × 15/8 × 15 = 450/120 - Add the two like fractions:
360/120 + 450/120 = 360 + 450/120 = 810/120 - 810/120 simplified gives 27/4
- So, 45/15 + 30/8 = 27/4
In mixed form: 63/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+30/8 45/15+60/8 45/30+30/8 45/15+30/16 45/15+90/8 45/15+30/24 45/75+30/8 45/15+30/40 45/15+30/56