Answers

Add 21/30 and 2/42

21/30 + 2/42 is 157/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   21/30 = 21 × 7/30 × 7 = 147/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   2/42 = 2 × 5/42 × 5 = 10/210
4. Add the two like fractions:
   147/210 + 10/210 = 147 + 10/210 = 157/210
5. So, 21/30 + 2/42 = 157/210

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