Add 30/90 and 10/63
30/90 + 10/63 is 31/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
30/90 = 30 × 7/90 × 7 = 210/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
10/63 = 10 × 10/63 × 10 = 100/630 - Add the two like fractions:
210/630 + 100/630 = 210 + 100/630 = 310/630 - 310/630 simplified gives 31/63
- So, 30/90 + 10/63 = 31/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90+10/63 30/90+20/63 30/90+30/63 30/90+50/63 30/90+70/63