Answers

Add 1/84 and 90/72

1^st number: 1/84, 2^nd number: 1 18/72

1/84 + 90/72 is 53/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   1/84 = 1 × 6/84 × 6 = 6/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   90/72 = 90 × 7/72 × 7 = 630/504
4. Add the two like fractions:
   6/504 + 630/504 = 6 + 630/504 = 636/504
5. 636/504 simplified gives 53/42
6. So, 1/84 + 90/72 = 53/42
   In mixed form: 111/42

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