Add 63/18 and 12/70
1st number: 3 9/18, 2nd number: 12/70
63/18 + 12/70 is 257/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
63/18 = 63 × 35/18 × 35 = 2205/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
2205/630 + 108/630 = 2205 + 108/630 = 2313/630 - 2313/630 simplified gives 257/70
- So, 63/18 + 12/70 = 257/70
In mixed form: 347/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+24/70 63/36+12/70 63/18+36/70 63/54+12/70 63/18+60/70 63/90+12/70 63/18+84/70