Answers

Add 15/4 and 56/70

1^st number: 3 3/4, 2^nd number: 56/70

15/4 + 56/70 is 91/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 4 × 35 = 140,
   15/4 = 15 × 35/4 × 35 = 525/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   56/70 = 56 × 2/70 × 2 = 112/140
4. Add the two like fractions:
   525/140 + 112/140 = 525 + 112/140 = 637/140
5. 637/140 simplified gives 91/20
6. So, 15/4 + 56/70 = 91/20
   In mixed form: 411/20

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