Answers

Add 42/7 and 45/40

1^st number: 6 0/7, 2^nd number: 1 5/40

42/7 + 45/40 is 57/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 7 × 40 = 280,
   42/7 = 42 × 40/7 × 40 = 1680/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   45/40 = 45 × 7/40 × 7 = 315/280
4. Add the two like fractions:
   1680/280 + 315/280 = 1680 + 315/280 = 1995/280
5. 1995/280 simplified gives 57/8
6. So, 42/7 + 45/40 = 57/8
   In mixed form: 71/8

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