Answers

Add 21/28 and 54/75

21/28 + 54/75 is 147/100.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 75 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 28 × 75 = 2100,
   21/28 = 21 × 75/28 × 75 = 1575/2100
3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
   54/75 = 54 × 28/75 × 28 = 1512/2100
4. Add the two like fractions:
   1575/2100 + 1512/2100 = 1575 + 1512/2100 = 3087/2100
5. 3087/2100 simplified gives 147/100
6. So, 21/28 + 54/75 = 147/100
   In mixed form: 147/100

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