Answers

Add 21/90 and 54/48

1^st number: 21/90, 2^nd number: 1 6/48

21/90 + 54/48 is 163/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 48 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   21/90 = 21 × 8/90 × 8 = 168/720
3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
   54/48 = 54 × 15/48 × 15 = 810/720
4. Add the two like fractions:
   168/720 + 810/720 = 168 + 810/720 = 978/720
5. 978/720 simplified gives 163/120
6. So, 21/90 + 54/48 = 163/120
   In mixed form: 143/120

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