Answers

Add 90/72 and 21/98

1^st number: 1 18/72, 2^nd number: 21/98

90/72 + 21/98 is 41/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 98 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 72 × 49 = 3528,
   90/72 = 90 × 49/72 × 49 = 4410/3528
3. Likewise, for the 2nd fraction, since 98 × 36 = 3528,
   21/98 = 21 × 36/98 × 36 = 756/3528
4. Add the two like fractions:
   4410/3528 + 756/3528 = 4410 + 756/3528 = 5166/3528
5. 5166/3528 simplified gives 41/28
6. So, 90/72 + 21/98 = 41/28
   In mixed form: 113/28

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