Answers

Add 15/63 and 56/40

1^st number: 15/63, 2^nd number: 1 16/40

15/63 + 56/40 is 172/105.

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,
   15/63 = 15 × 40/63 × 40 = 600/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   56/40 = 56 × 63/40 × 63 = 3528/2520
4. Add the two like fractions:
   600/2520 + 3528/2520 = 600 + 3528/2520 = 4128/2520
5. 4128/2520 simplified gives 172/105
6. So, 15/63 + 56/40 = 172/105
   In mixed form: 167/105

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