Answers

Add 3/40 and 64/90

3/40 + 64/90 is 283/360.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   3/40 = 3 × 9/40 × 9 = 27/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   64/90 = 64 × 4/90 × 4 = 256/360
4. Add the two like fractions:
   27/360 + 256/360 = 27 + 256/360 = 283/360
5. So, 3/40 + 64/90 = 283/360

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