Answers

Add 14/70 and 42/90

14/70 + 42/90 is 2/3.

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,
   14/70 = 14 × 9/70 × 9 = 126/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   42/90 = 42 × 7/90 × 7 = 294/630
4. Add the two like fractions:
   126/630 + 294/630 = 126 + 294/630 = 420/630
5. 420/630 simplified gives 2/3
6. So, 14/70 + 42/90 = 2/3

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