Answers

Add 40/64 and 90/45

1^st number: 40/64, 2^nd number: 2 0/45

40/64 + 90/45 is 21/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 45 is 2880
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2880
2. For the 1st fraction, since 64 × 45 = 2880,
   40/64 = 40 × 45/64 × 45 = 1800/2880
3. Likewise, for the 2nd fraction, since 45 × 64 = 2880,
   90/45 = 90 × 64/45 × 64 = 5760/2880
4. Add the two like fractions:
   1800/2880 + 5760/2880 = 1800 + 5760/2880 = 7560/2880
5. 7560/2880 simplified gives 21/8
6. So, 40/64 + 90/45 = 21/8
   In mixed form: 25/8

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