Answers

Add 9/70 and 25/45

9/70 + 25/45 is 431/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   9/70 = 9 × 9/70 × 9 = 81/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   25/45 = 25 × 14/45 × 14 = 350/630
4. Add the two like fractions:
   81/630 + 350/630 = 81 + 350/630 = 431/630
5. So, 9/70 + 25/45 = 431/630

MathStep (Works offline)

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

Related: ¹⁸/₇₀+²⁵/₄₅ ⁹/₇₀+⁵⁰/₄₅ ⁹/₇₀+²⁵/₉₀ ²⁷/₇₀+²⁵/₄₅ ⁹/₇₀+⁷⁵/₄₅ ⁴⁵/₇₀+²⁵/₄₅ ⁶³/₇₀+²⁵/₄₅

Add Fractions Calculator