Answers

Add 70/90 and 40/7

1^st number: 70/90, 2^nd number: 5 5/7

70/90 + 40/7 is 409/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 7 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   70/90 = 70 × 7/90 × 7 = 490/630
3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
   40/7 = 40 × 90/7 × 90 = 3600/630
4. Add the two like fractions:
   490/630 + 3600/630 = 490 + 3600/630 = 4090/630
5. 4090/630 simplified gives 409/63
6. So, 70/90 + 40/7 = 409/63
   In mixed form: 631/63

MathStep (Works offline)

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

Related: ⁷⁰/₉₀+⁸⁰/₇ ⁷⁰/₉₀+⁴⁰/₁₄ ⁷⁰/₉₀+⁴⁰/₂₁ ⁷⁰/₉₀+⁴⁰/₃₅ ⁷⁰/₉₀+⁴⁰/₄₉

Add Fractions Calculator