Answers

Add 84/63 and 50/40

1^st number: 1 21/63, 2^nd number: 1 10/40

84/63 + 50/40 is 31/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 40 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 63 × 40 = 2520,
   84/63 = 84 × 40/63 × 40 = 3360/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   50/40 = 50 × 63/40 × 63 = 3150/2520
4. Add the two like fractions:
   3360/2520 + 3150/2520 = 3360 + 3150/2520 = 6510/2520
5. 6510/2520 simplified gives 31/12
6. So, 84/63 + 50/40 = 31/12
   In mixed form: 27/12

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