Answers

Add 24/63 and 42/90

24/63 + 42/90 is 89/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   24/63 = 24 × 10/63 × 10 = 240/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   42/90 = 42 × 7/90 × 7 = 294/630
4. Add the two like fractions:
   240/630 + 294/630 = 240 + 294/630 = 534/630
5. 534/630 simplified gives 89/105
6. So, 24/63 + 42/90 = 89/105

MathStep (Works offline)

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

Related: ⁴⁸/₆₃+⁴²/₉₀ ²⁴/₆₃+⁸⁴/₉₀ ⁷²/₆₃+⁴²/₉₀

Add Fractions Calculator