Answers

Add 90/42 and 40/49

1^st number: 2 6/42, 2^nd number: 40/49

90/42 + 40/49 is 145/49.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 49 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 42 × 7 = 294,
   90/42 = 90 × 7/42 × 7 = 630/294
3. Likewise, for the 2nd fraction, since 49 × 6 = 294,
   40/49 = 40 × 6/49 × 6 = 240/294
4. Add the two like fractions:
   630/294 + 240/294 = 630 + 240/294 = 870/294
5. 870/294 simplified gives 145/49
6. So, 90/42 + 40/49 = 145/49
   In mixed form: 247/49

MathStep (Works offline)

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

Related: ⁹⁰/₄₂+⁸⁰/₄₉ ⁹⁰/₈₄+⁴⁰/₄₉ ⁹⁰/₄₂+⁴⁰/₉₈

Add Fractions Calculator