Add 30/4 and 40/15
1st number: 7 2/4, 2nd number: 2 10/15
30/4 + 40/15 is 61/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
30/4 = 30 × 15/4 × 15 = 450/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
40/15 = 40 × 4/15 × 4 = 160/60 - Add the two like fractions:
450/60 + 160/60 = 450 + 160/60 = 610/60 - 610/60 simplified gives 61/6
- So, 30/4 + 40/15 = 61/6
In mixed form: 101/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4+40/15 30/4+80/15 30/8+40/15 30/4+40/30 90/4+40/15 30/12+40/15 30/4+40/45 30/20+40/15 30/4+40/75 30/28+40/15