Answers

Add 90/63 and 30/40

1^st number: 1 27/63, 2^nd number: 30/40

90/63 + 30/40 is 61/28.

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,
   90/63 = 90 × 40/63 × 40 = 3600/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   30/40 = 30 × 63/40 × 63 = 1890/2520
4. Add the two like fractions:
   3600/2520 + 1890/2520 = 3600 + 1890/2520 = 5490/2520
5. 5490/2520 simplified gives 61/28
6. So, 90/63 + 30/40 = 61/28
   In mixed form: 25/28

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