Answers

Add 70/45 and 25/42

1^st number: 1 25/45, 2^nd number: 25/42

70/45 + 25/42 is 271/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   70/45 = 70 × 14/45 × 14 = 980/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   25/42 = 25 × 15/42 × 15 = 375/630
4. Add the two like fractions:
   980/630 + 375/630 = 980 + 375/630 = 1355/630
5. 1355/630 simplified gives 271/126
6. So, 70/45 + 25/42 = 271/126
   In mixed form: 219/126

MathStep (Works offline)

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

Related: ⁷⁰/₄₅+⁵⁰/₄₂ ⁷⁰/₉₀+²⁵/₄₂ ⁷⁰/₄₅+²⁵/₈₄ ⁷⁰/₄₅+⁷⁵/₄₂

Add Fractions Calculator