Answers

Add 90/42 and 64/30

1^st number: 2 6/42, 2^nd number: 2 4/30

90/42 + 64/30 is 449/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   90/42 = 90 × 5/42 × 5 = 450/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   64/30 = 64 × 7/30 × 7 = 448/210
4. Add the two like fractions:
   450/210 + 448/210 = 450 + 448/210 = 898/210
5. 898/210 simplified gives 449/105
6. So, 90/42 + 64/30 = 449/105
   In mixed form: 429/105

MathStep (Works offline)

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

Related: ⁹⁰/₈₄+⁶⁴/₃₀ ⁹⁰/₄₂+⁶⁴/₆₀ ⁹⁰/₄₂+⁶⁴/₉₀

Add Fractions Calculator