Answers

Add 21/70 and 54/28

1^st number: 21/70, 2^nd number: 1 26/28

21/70 + 54/28 is 78/35.

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,
   21/70 = 21 × 2/70 × 2 = 42/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   54/28 = 54 × 5/28 × 5 = 270/140
4. Add the two like fractions:
   42/140 + 270/140 = 42 + 270/140 = 312/140
5. 312/140 simplified gives 78/35
6. So, 21/70 + 54/28 = 78/35
   In mixed form: 28/35

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