Add 15/2 and 45/63
1st number: 7 1/2, 2nd number: 45/63
15/2 + 45/63 is 115/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
15/2 = 15 × 63/2 × 63 = 945/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
45/63 = 45 × 2/63 × 2 = 90/126 - Add the two like fractions:
945/126 + 90/126 = 945 + 90/126 = 1035/126 - 1035/126 simplified gives 115/14
- So, 15/2 + 45/63 = 115/14
In mixed form: 83/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+45/63 15/2+90/63 15/4+45/63 45/2+45/63 15/6+45/63 75/2+45/63 15/10+45/63 15/14+45/63