Answers

Add 28/40 and 81/75

1^st number: 28/40, 2^nd number: 1 6/75

28/40 + 81/75 is 89/50.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 75 is 600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 600
2. For the 1st fraction, since 40 × 15 = 600,
   28/40 = 28 × 15/40 × 15 = 420/600
3. Likewise, for the 2nd fraction, since 75 × 8 = 600,
   81/75 = 81 × 8/75 × 8 = 648/600
4. Add the two like fractions:
   420/600 + 648/600 = 420 + 648/600 = 1068/600
5. 1068/600 simplified gives 89/50
6. So, 28/40 + 81/75 = 89/50
   In mixed form: 139/50

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