Answers

Add 28/40 and 54/45

1^st number: 28/40, 2^nd number: 1 9/45

28/40 + 54/45 is 19/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   28/40 = 28 × 9/40 × 9 = 252/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   54/45 = 54 × 8/45 × 8 = 432/360
4. Add the two like fractions:
   252/360 + 432/360 = 252 + 432/360 = 684/360
5. 684/360 simplified gives 19/10
6. So, 28/40 + 54/45 = 19/10
   In mixed form: 19/10

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