Answers

Add 54/70 and 36/28

1^st number: 54/70, 2^nd number: 1 8/28

54/70 + 36/28 is 72/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   54/70 = 54 × 2/70 × 2 = 108/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   36/28 = 36 × 5/28 × 5 = 180/140
4. Add the two like fractions:
   108/140 + 180/140 = 108 + 180/140 = 288/140
5. 288/140 simplified gives 72/35
6. So, 54/70 + 36/28 = 72/35
   In mixed form: 22/35

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