Add 42/15 and 25/63
1st number: 2 12/15, 2nd number: 25/63
42/15 + 25/63 is 1007/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
42/15 = 42 × 21/15 × 21 = 882/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
25/63 = 25 × 5/63 × 5 = 125/315 - Add the two like fractions:
882/315 + 125/315 = 882 + 125/315 = 1007/315 - So, 42/15 + 25/63 = 1007/315
In mixed form: 362/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+25/63 42/15+50/63 42/30+25/63 42/15+75/63 42/45+25/63 42/75+25/63