Answers

Add 90/28 and 18/35

1^st number: 3 6/28, 2^nd number: 18/35

90/28 + 18/35 is 261/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 35 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 28 × 5 = 140,
   90/28 = 90 × 5/28 × 5 = 450/140
3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
   18/35 = 18 × 4/35 × 4 = 72/140
4. Add the two like fractions:
   450/140 + 72/140 = 450 + 72/140 = 522/140
5. 522/140 simplified gives 261/70
6. So, 90/28 + 18/35 = 261/70
   In mixed form: 351/70

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