Answers

Add 40/28 and 90/24

1^st number: 1 12/28, 2^nd number: 3 18/24

40/28 + 90/24 is 145/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 24 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 28 × 6 = 168,
   40/28 = 40 × 6/28 × 6 = 240/168
3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
   90/24 = 90 × 7/24 × 7 = 630/168
4. Add the two like fractions:
   240/168 + 630/168 = 240 + 630/168 = 870/168
5. 870/168 simplified gives 145/28
6. So, 40/28 + 90/24 = 145/28
   In mixed form: 55/28

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