Answers

Add 90/64 and 18/28

1^st number: 1 26/64, 2^nd number: 18/28

90/64 + 18/28 is 459/224.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 28 is 448
   
   Next, find the equivalent fraction of both fractional numbers with denominator 448
2. For the 1st fraction, since 64 × 7 = 448,
   90/64 = 90 × 7/64 × 7 = 630/448
3. Likewise, for the 2nd fraction, since 28 × 16 = 448,
   18/28 = 18 × 16/28 × 16 = 288/448
4. Add the two like fractions:
   630/448 + 288/448 = 630 + 288/448 = 918/448
5. 918/448 simplified gives 459/224
6. So, 90/64 + 18/28 = 459/224
   In mixed form: 211/224

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