Add 25/30 and 18/63
25/30 + 18/63 is 47/42.
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,
25/30 = 25 × 21/30 × 21 = 525/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
18/63 = 18 × 10/63 × 10 = 180/630 - Add the two like fractions:
525/630 + 180/630 = 525 + 180/630 = 705/630 - 705/630 simplified gives 47/42
- So, 25/30 + 18/63 = 47/42
In mixed form: 15/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+18/63 25/30+36/63 25/60+18/63 75/30+18/63 25/30+54/63 25/90+18/63 25/30+90/63