Answers

Add 54/21 and 18/75

1^st number: 2 12/21, 2^nd number: 18/75

54/21 + 18/75 is 492/175.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 75 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   54/21 = 54 × 25/21 × 25 = 1350/525
3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
   18/75 = 18 × 7/75 × 7 = 126/525
4. Add the two like fractions:
   1350/525 + 126/525 = 1350 + 126/525 = 1476/525
5. 1476/525 simplified gives 492/175
6. So, 54/21 + 18/75 = 492/175
   In mixed form: 2142/175

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