Answers

Add 49/21 and 42/72

1^st number: 2 7/21, 2^nd number: 42/72

49/21 + 42/72 is 35/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 21 × 24 = 504,
   49/21 = 49 × 24/21 × 24 = 1176/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   42/72 = 42 × 7/72 × 7 = 294/504
4. Add the two like fractions:
   1176/504 + 294/504 = 1176 + 294/504 = 1470/504
5. 1470/504 simplified gives 35/12
6. So, 49/21 + 42/72 = 35/12
   In mixed form: 211/12

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