Add 7/30 and 15/63
7/30 + 15/63 is 33/70.
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,
7/30 = 7 × 21/30 × 21 = 147/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Add the two like fractions:
147/630 + 150/630 = 147 + 150/630 = 297/630 - 297/630 simplified gives 33/70
- So, 7/30 + 15/63 = 33/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30+15/63 7/30+30/63 7/60+15/63 21/30+15/63 7/30+45/63 7/90+15/63 35/30+15/63 7/30+75/63 49/30+15/63