Answers

Add 42/21 and 42/10

1^st number: 2 0/21, 2^nd number: 4 2/10

42/21 + 42/10 is 31/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 10 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   42/21 = 42 × 10/21 × 10 = 420/210
3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
   42/10 = 42 × 21/10 × 21 = 882/210
4. Add the two like fractions:
   420/210 + 882/210 = 420 + 882/210 = 1302/210
5. 1302/210 simplified gives 31/5
6. So, 42/21 + 42/10 = 31/5
   In mixed form: 61/5

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