Answers

Add 84/40 and 40/63

1^st number: 2 4/40, 2^nd number: 40/63

84/40 + 40/63 is 1723/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 63 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 40 × 63 = 2520,
   84/40 = 84 × 63/40 × 63 = 5292/2520
3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
   40/63 = 40 × 40/63 × 40 = 1600/2520
4. Add the two like fractions:
   5292/2520 + 1600/2520 = 5292 + 1600/2520 = 6892/2520
5. 6892/2520 simplified gives 1723/630
6. So, 84/40 + 40/63 = 1723/630
   In mixed form: 2463/630

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