Answers

Add 40/42 and 70/45

1^st number: 40/42, 2^nd number: 1 25/45

40/42 + 70/45 is 158/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   40/42 = 40 × 15/42 × 15 = 600/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   70/45 = 70 × 14/45 × 14 = 980/630
4. Add the two like fractions:
   600/630 + 980/630 = 600 + 980/630 = 1580/630
5. 1580/630 simplified gives 158/63
6. So, 40/42 + 70/45 = 158/63
   In mixed form: 232/63

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