Answers

Add 63/15 and 70/63

1^st number: 4 3/15, 2^nd number: 1 7/63

63/15 + 70/63 is 239/45.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 15 × 21 = 315,
   63/15 = 63 × 21/15 × 21 = 1323/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   70/63 = 70 × 5/63 × 5 = 350/315
4. Add the two like fractions:
   1323/315 + 350/315 = 1323 + 350/315 = 1673/315
5. 1673/315 simplified gives 239/45
6. So, 63/15 + 70/63 = 239/45
   In mixed form: 514/45

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁶³/₃₀+⁷⁰/₆₃ ⁶³/₄₅+⁷⁰/₆₃ ⁶³/₇₅+⁷⁰/₆₃

Add Fractions Calculator