Answers

Add 40/45 and 45/42

1^st number: 40/45, 2^nd number: 1 3/42

40/45 + 45/42 is 247/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   40/45 = 40 × 14/45 × 14 = 560/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   45/42 = 45 × 15/42 × 15 = 675/630
4. Add the two like fractions:
   560/630 + 675/630 = 560 + 675/630 = 1235/630
5. 1235/630 simplified gives 247/126
6. So, 40/45 + 45/42 = 247/126
   In mixed form: 1121/126

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