Answers

Add 90/35 and 54/80

1^st number: 2 20/35, 2^nd number: 54/80

90/35 + 54/80 is 909/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 35 × 16 = 560,
   90/35 = 90 × 16/35 × 16 = 1440/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   54/80 = 54 × 7/80 × 7 = 378/560
4. Add the two like fractions:
   1440/560 + 378/560 = 1440 + 378/560 = 1818/560
5. 1818/560 simplified gives 909/280
6. So, 90/35 + 54/80 = 909/280
   In mixed form: 369/280

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