Add 90/15 and 6/63
1st number: 6 0/15, 2nd number: 6/63
90/15 + 6/63 is 128/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
90/15 = 90 × 21/15 × 21 = 1890/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
6/63 = 6 × 5/63 × 5 = 30/315 - Add the two like fractions:
1890/315 + 30/315 = 1890 + 30/315 = 1920/315 - 1920/315 simplified gives 128/21
- So, 90/15 + 6/63 = 128/21
In mixed form: 62/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+12/63 90/30+6/63 90/15+18/63 90/45+6/63 90/15+30/63 90/75+6/63 90/15+42/63