Answers

Add 63/70 and 40/18

1^st number: 63/70, 2^nd number: 2 4/18

63/70 + 40/18 is 281/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 18 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   63/70 = 63 × 9/70 × 9 = 567/630
3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
   40/18 = 40 × 35/18 × 35 = 1400/630
4. Add the two like fractions:
   567/630 + 1400/630 = 567 + 1400/630 = 1967/630
5. 1967/630 simplified gives 281/90
6. So, 63/70 + 40/18 = 281/90
   In mixed form: 311/90

MathStep (Works offline)

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

Related: ⁶³/₇₀+⁸⁰/₁₈ ⁶³/₇₀+⁴⁰/₃₆ ⁶³/₇₀+⁴⁰/₅₄ ⁶³/₇₀+⁴⁰/₉₀

Add Fractions Calculator