Answers

Add 21/60 and 90/48

1^st number: 21/60, 2^nd number: 1 42/48

21/60 + 90/48 is 89/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 48 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 60 × 4 = 240,
   21/60 = 21 × 4/60 × 4 = 84/240
3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
   90/48 = 90 × 5/48 × 5 = 450/240
4. Add the two like fractions:
   84/240 + 450/240 = 84 + 450/240 = 534/240
5. 534/240 simplified gives 89/40
6. So, 21/60 + 90/48 = 89/40
   In mixed form: 29/40

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