Answers

Add 24/70 and 42/40

1^st number: 24/70, 2^nd number: 1 2/40

24/70 + 42/40 is 39/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   24/70 = 24 × 4/70 × 4 = 96/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   42/40 = 42 × 7/40 × 7 = 294/280
4. Add the two like fractions:
   96/280 + 294/280 = 96 + 294/280 = 390/280
5. 390/280 simplified gives 39/28
6. So, 24/70 + 42/40 = 39/28
   In mixed form: 111/28

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