Answers

Add 20/60 and 21/40

20/60 + 21/40 is 103/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 60 × 2 = 120,
   20/60 = 20 × 2/60 × 2 = 40/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   21/40 = 21 × 3/40 × 3 = 63/120
4. Add the two like fractions:
   40/120 + 63/120 = 40 + 63/120 = 103/120
5. So, 20/60 + 21/40 = 103/120

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