Answers

Add 42/70 and 45/8

1^st number: 42/70, 2^nd number: 5 5/8

42/70 + 45/8 is 249/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 8 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   42/70 = 42 × 4/70 × 4 = 168/280
3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
   45/8 = 45 × 35/8 × 35 = 1575/280
4. Add the two like fractions:
   168/280 + 1575/280 = 168 + 1575/280 = 1743/280
5. 1743/280 simplified gives 249/40
6. So, 42/70 + 45/8 = 249/40
   In mixed form: 69/40

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