Answers

Add 49/20 and 90/63

1^st number: 2 9/20, 2^nd number: 1 27/63

49/20 + 90/63 is 543/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   49/20 = 49 × 63/20 × 63 = 3087/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   90/63 = 90 × 20/63 × 20 = 1800/1260
4. Add the two like fractions:
   3087/1260 + 1800/1260 = 3087 + 1800/1260 = 4887/1260
5. 4887/1260 simplified gives 543/140
6. So, 49/20 + 90/63 = 543/140
   In mixed form: 3123/140

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