Answers

Add 42/10 and 45/70

1^st number: 4 2/10, 2^nd number: 45/70

42/10 + 45/70 is 339/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 70 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 10 × 7 = 70,
   42/10 = 42 × 7/10 × 7 = 294/70
3. Likewise, for the 2nd fraction, since 70 × 1 = 70,
   45/70 = 45 × 1/70 × 1 = 45/70
4. Add the two like fractions:
   294/70 + 45/70 = 294 + 45/70 = 339/70
5. So, 42/10 + 45/70 = 339/70
   In mixed form: 459/70

MathStep (Works offline)

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

Related: ⁸⁴/₁₀+⁴⁵/₇₀ ⁴²/₁₀+⁹⁰/₇₀ ⁴²/₂₀+⁴⁵/₇₀ ⁴²/₃₀+⁴⁵/₇₀ ⁴²/₅₀+⁴⁵/₇₀ ⁴²/₇₀+⁴⁵/₇₀

Add Fractions Calculator