Add 42/30 and 56/63
1st number: 1 12/30, 2nd number: 56/63
42/30 + 56/63 is 103/45.
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,
42/30 = 42 × 21/30 × 21 = 882/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
56/63 = 56 × 10/63 × 10 = 560/630 - Add the two like fractions:
882/630 + 560/630 = 882 + 560/630 = 1442/630 - 1442/630 simplified gives 103/45
- So, 42/30 + 56/63 = 103/45
In mixed form: 213/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+56/63 42/60+56/63 42/90+56/63