Answers

Add 80/56 and 12/90

1^st number: 1 24/56, 2^nd number: 12/90

80/56 + 12/90 is 164/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 90 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 56 × 45 = 2520,
   80/56 = 80 × 45/56 × 45 = 3600/2520
3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
   12/90 = 12 × 28/90 × 28 = 336/2520
4. Add the two like fractions:
   3600/2520 + 336/2520 = 3600 + 336/2520 = 3936/2520
5. 3936/2520 simplified gives 164/105
6. So, 80/56 + 12/90 = 164/105
   In mixed form: 159/105

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