Answers

Add 84/70 and 42/63

1^st number: 1 14/70, 2^nd number: 42/63

84/70 + 42/63 is 28/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   84/70 = 84 × 9/70 × 9 = 756/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   42/63 = 42 × 10/63 × 10 = 420/630
4. Add the two like fractions:
   756/630 + 420/630 = 756 + 420/630 = 1176/630
5. 1176/630 simplified gives 28/15
6. So, 84/70 + 42/63 = 28/15
   In mixed form: 113/15

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