Answers

Add 40/42 and 63/40

1^st number: 40/42, 2^nd number: 1 23/40

40/42 + 63/40 is 2123/840.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 42 × 20 = 840,
   40/42 = 40 × 20/42 × 20 = 800/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   63/40 = 63 × 21/40 × 21 = 1323/840
4. Add the two like fractions:
   800/840 + 1323/840 = 800 + 1323/840 = 2123/840
5. So, 40/42 + 63/40 = 2123/840
   In mixed form: 2443/840

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