Answers

Add 42/70 and 48/45

1^st number: 42/70, 2^nd number: 1 3/45

42/70 + 48/45 is 5/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   42/70 = 42 × 9/70 × 9 = 378/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   48/45 = 48 × 14/45 × 14 = 672/630
4. Add the two like fractions:
   378/630 + 672/630 = 378 + 672/630 = 1050/630
5. 1050/630 simplified gives 5/3
6. So, 42/70 + 48/45 = 5/3
   In mixed form: 12/3

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