Add 3/10 and 42/63
3/10 + 42/63 is 29/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
3/10 = 3 × 63/10 × 63 = 189/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
42/63 = 42 × 10/63 × 10 = 420/630 - Add the two like fractions:
189/630 + 420/630 = 189 + 420/630 = 609/630 - 609/630 simplified gives 29/30
- So, 3/10 + 42/63 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10+42/63 3/10+84/63 3/20+42/63 9/10+42/63 3/30+42/63 15/10+42/63 3/50+42/63 21/10+42/63 3/70+42/63