Answers

Add 15/63 and 5/70

15/63 + 5/70 is 13/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   15/63 = 15 × 10/63 × 10 = 150/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   5/70 = 5 × 9/70 × 9 = 45/630
4. Add the two like fractions:
   150/630 + 45/630 = 150 + 45/630 = 195/630
5. 195/630 simplified gives 13/42
6. So, 15/63 + 5/70 = 13/42

MathStep (Works offline)

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

Related: ³⁰/₆₃+⁵/₇₀ ¹⁵/₆₃+¹⁰/₇₀ ⁴⁵/₆₃+⁵/₇₀ ¹⁵/₆₃+¹⁵/₇₀ ⁷⁵/₆₃+⁵/₇₀ ¹⁵/₆₃+²⁵/₇₀ ¹⁵/₆₃+³⁵/₇₀

Add Fractions Calculator