Add 15/63 and 90/6
1st number: 15/63, 2nd number: 15 0/6
15/63 + 90/6 is 320/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 6 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126 - Likewise, for the 2nd fraction, since 6 × 21 = 126,
90/6 = 90 × 21/6 × 21 = 1890/126 - Add the two like fractions:
30/126 + 1890/126 = 30 + 1890/126 = 1920/126 - 1920/126 simplified gives 320/21
- So, 15/63 + 90/6 = 320/21
In mixed form: 155/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63+90/6 15/63+90/12 45/63+90/6 15/63+90/18 75/63+90/6 15/63+90/30 15/63+90/42