Answers

Add 90/10 and 63/40

1^st number: 9 0/10, 2^nd number: 1 23/40

90/10 + 63/40 is 423/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 10 × 4 = 40,
   90/10 = 90 × 4/10 × 4 = 360/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   63/40 = 63 × 1/40 × 1 = 63/40
4. Add the two like fractions:
   360/40 + 63/40 = 360 + 63/40 = 423/40
5. So, 90/10 + 63/40 = 423/40
   In mixed form: 1023/40

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