Answers

Add 42/8 and 54/90

1^st number: 5 2/8, 2^nd number: 54/90

42/8 + 54/90 is 117/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 8 × 45 = 360,
   42/8 = 42 × 45/8 × 45 = 1890/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   54/90 = 54 × 4/90 × 4 = 216/360
4. Add the two like fractions:
   1890/360 + 216/360 = 1890 + 216/360 = 2106/360
5. 2106/360 simplified gives 117/20
6. So, 42/8 + 54/90 = 117/20
   In mixed form: 517/20

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