Add 45/15 and 20/7
1st number: 3 0/15, 2nd number: 2 6/7
45/15 + 20/7 is 41/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
45/15 = 45 × 7/15 × 7 = 315/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
20/7 = 20 × 15/7 × 15 = 300/105 - Add the two like fractions:
315/105 + 300/105 = 315 + 300/105 = 615/105 - 615/105 simplified gives 41/7
- So, 45/15 + 20/7 = 41/7
In mixed form: 56/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+20/7 45/15+40/7 45/30+20/7 45/15+20/14 45/15+60/7 45/15+20/21 45/75+20/7 45/15+20/35 45/15+20/49