Answers

Add 27/24 and 42/70

1^st number: 1 3/24, 2^nd number: 42/70

27/24 + 42/70 is 69/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 70 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 24 × 35 = 840,
   27/24 = 27 × 35/24 × 35 = 945/840
3. Likewise, for the 2nd fraction, since 70 × 12 = 840,
   42/70 = 42 × 12/70 × 12 = 504/840
4. Add the two like fractions:
   945/840 + 504/840 = 945 + 504/840 = 1449/840
5. 1449/840 simplified gives 69/40
6. So, 27/24 + 42/70 = 69/40
   In mixed form: 129/40

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