Answers

Add 25/21 and 42/49

1^st number: 1 4/21, 2^nd number: 42/49

25/21 + 42/49 is 43/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 49 is 147
   
   Next, find the equivalent fraction of both fractional numbers with denominator 147
2. For the 1st fraction, since 21 × 7 = 147,
   25/21 = 25 × 7/21 × 7 = 175/147
3. Likewise, for the 2nd fraction, since 49 × 3 = 147,
   42/49 = 42 × 3/49 × 3 = 126/147
4. Add the two like fractions:
   175/147 + 126/147 = 175 + 126/147 = 301/147
5. 301/147 simplified gives 43/21
6. So, 25/21 + 42/49 = 43/21
   In mixed form: 21/21

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