Answers

Add 27/70 and 2/90

27/70 + 2/90 is 257/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   27/70 = 27 × 9/70 × 9 = 243/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   2/90 = 2 × 7/90 × 7 = 14/630
4. Add the two like fractions:
   243/630 + 14/630 = 243 + 14/630 = 257/630
5. So, 27/70 + 2/90 = 257/630

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