Add 1/30 and 21/63
1/30 + 21/63 is 11/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
1/30 = 1 × 21/30 × 21 = 21/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Add the two like fractions:
21/630 + 210/630 = 21 + 210/630 = 231/630 - 231/630 simplified gives 11/30
- So, 1/30 + 21/63 = 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30+21/63 1/30+42/63 1/60+21/63 3/30+21/63 1/90+21/63 5/30+21/63 7/30+21/63