Answers

Add 27/70 and 5/21

27/70 + 5/21 is 131/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   27/70 = 27 × 3/70 × 3 = 81/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   5/21 = 5 × 10/21 × 10 = 50/210
4. Add the two like fractions:
   81/210 + 50/210 = 81 + 50/210 = 131/210
5. So, 27/70 + 5/21 = 131/210

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