Add 15/10 and 12/63
1st number: 1 5/10, 2nd number: 12/63
15/10 + 12/63 is 71/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
15/10 = 15 × 63/10 × 63 = 945/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
12/63 = 12 × 10/63 × 10 = 120/630 - Add the two like fractions:
945/630 + 120/630 = 945 + 120/630 = 1065/630 - 1065/630 simplified gives 71/42
- So, 15/10 + 12/63 = 71/42
In mixed form: 129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+12/63 15/10+24/63 15/20+12/63 45/10+12/63 15/10+36/63 15/30+12/63 75/10+12/63 15/10+60/63 15/50+12/63 15/10+84/63 15/70+12/63