Answers

Add 42/24 and 56/90

1^st number: 1 18/24, 2^nd number: 56/90

42/24 + 56/90 is 427/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 24 × 15 = 360,
   42/24 = 42 × 15/24 × 15 = 630/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   56/90 = 56 × 4/90 × 4 = 224/360
4. Add the two like fractions:
   630/360 + 224/360 = 630 + 224/360 = 854/360
5. 854/360 simplified gives 427/180
6. So, 42/24 + 56/90 = 427/180
   In mixed form: 267/180

MathStep (Works offline)

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

Related: ⁸⁴/₂₄+⁵⁶/₉₀ ⁴²/₄₈+⁵⁶/₉₀ ⁴²/₇₂+⁵⁶/₉₀

Add Fractions Calculator