Answers

Add 20/56 and 90/70

1^st number: 20/56, 2^nd number: 1 20/70

20/56 + 90/70 is 23/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   20/56 = 20 × 5/56 × 5 = 100/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   90/70 = 90 × 4/70 × 4 = 360/280
4. Add the two like fractions:
   100/280 + 360/280 = 100 + 360/280 = 460/280
5. 460/280 simplified gives 23/14
6. So, 20/56 + 90/70 = 23/14
   In mixed form: 19/14

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