Answers

Add 98/40 and 20/42

1^st number: 2 18/40, 2^nd number: 20/42

98/40 + 20/42 is 1229/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 42 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   98/40 = 98 × 21/40 × 21 = 2058/840
3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
   20/42 = 20 × 20/42 × 20 = 400/840
4. Add the two like fractions:
   2058/840 + 400/840 = 2058 + 400/840 = 2458/840
5. 2458/840 simplified gives 1229/420
6. So, 98/40 + 20/42 = 1229/420
   In mixed form: 2389/420

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