Answers

Add 40/28 and 45/40

1^st number: 1 12/28, 2^nd number: 1 5/40

40/28 + 45/40 is 143/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 28 × 10 = 280,
   40/28 = 40 × 10/28 × 10 = 400/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   45/40 = 45 × 7/40 × 7 = 315/280
4. Add the two like fractions:
   400/280 + 315/280 = 400 + 315/280 = 715/280
5. 715/280 simplified gives 143/56
6. So, 40/28 + 45/40 = 143/56
   In mixed form: 231/56

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