Add 15/2 and 63/45
1st number: 7 1/2, 2nd number: 1 18/45
15/2 + 63/45 is 89/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
15/2 = 15 × 45/2 × 45 = 675/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
63/45 = 63 × 2/45 × 2 = 126/90 - Add the two like fractions:
675/90 + 126/90 = 675 + 126/90 = 801/90 - 801/90 simplified gives 89/10
- So, 15/2 + 63/45 = 89/10
In mixed form: 89/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+63/45 15/4+63/45 15/2+63/90 45/2+63/45 15/6+63/45 75/2+63/45 15/10+63/45 15/14+63/45