Answers

Add 49/21 and 54/20

1^st number: 2 7/21, 2^nd number: 2 14/20

49/21 + 54/20 is 151/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 21 × 20 = 420,
   49/21 = 49 × 20/21 × 20 = 980/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   54/20 = 54 × 21/20 × 21 = 1134/420
4. Add the two like fractions:
   980/420 + 1134/420 = 980 + 1134/420 = 2114/420
5. 2114/420 simplified gives 151/30
6. So, 49/21 + 54/20 = 151/30
   In mixed form: 51/30

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