Answers

Add 30/72 and 42/90

30/72 + 42/90 is 53/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   30/72 = 30 × 5/72 × 5 = 150/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   42/90 = 42 × 4/90 × 4 = 168/360
4. Add the two like fractions:
   150/360 + 168/360 = 150 + 168/360 = 318/360
5. 318/360 simplified gives 53/60
6. So, 30/72 + 42/90 = 53/60

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