Add 15/63 and 10/90
15/63 + 10/90 is 22/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
10/90 = 10 × 7/90 × 7 = 70/630 - Add the two like fractions:
150/630 + 70/630 = 150 + 70/630 = 220/630 - 220/630 simplified gives 22/63
- So, 15/63 + 10/90 = 22/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63+10/90 15/63+20/90 45/63+10/90 15/63+30/90 75/63+10/90 15/63+50/90 15/63+70/90