Answers

Add 70/63 and 35/40

1^st number: 1 7/63, 2^nd number: 35/40

70/63 + 35/40 is 143/72.

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,
   70/63 = 70 × 40/63 × 40 = 2800/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   35/40 = 35 × 63/40 × 63 = 2205/2520
4. Add the two like fractions:
   2800/2520 + 2205/2520 = 2800 + 2205/2520 = 5005/2520
5. 5005/2520 simplified gives 143/72
6. So, 70/63 + 35/40 = 143/72
   In mixed form: 171/72

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