Answers

Add 60/70 and 42/63

60/70 + 42/63 is 32/21.

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,
   60/70 = 60 × 9/70 × 9 = 540/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   42/63 = 42 × 10/63 × 10 = 420/630
4. Add the two like fractions:
   540/630 + 420/630 = 540 + 420/630 = 960/630
5. 960/630 simplified gives 32/21
6. So, 60/70 + 42/63 = 32/21
   In mixed form: 111/21

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