Answers

Add 60/40 and 40/63

1^st number: 1 20/40, 2^nd number: 40/63

60/40 + 40/63 is 269/126.

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,
   60/40 = 60 × 63/40 × 63 = 3780/2520
3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
   40/63 = 40 × 40/63 × 40 = 1600/2520
4. Add the two like fractions:
   3780/2520 + 1600/2520 = 3780 + 1600/2520 = 5380/2520
5. 5380/2520 simplified gives 269/126
6. So, 60/40 + 40/63 = 269/126
   In mixed form: 217/126

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