Add 90/63 and 30/15
1st number: 1 27/63, 2nd number: 2 0/15
90/63 + 30/15 is 24/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
90/63 = 90 × 5/63 × 5 = 450/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
30/15 = 30 × 21/15 × 21 = 630/315 - Add the two like fractions:
450/315 + 630/315 = 450 + 630/315 = 1080/315 - 1080/315 simplified gives 24/7
- So, 90/63 + 30/15 = 24/7
In mixed form: 33/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63+60/15 90/63+90/15 90/63+30/45 90/63+30/75