Answers

Add 50/72 and 42/10

1^st number: 50/72, 2^nd number: 4 2/10

50/72 + 42/10 is 881/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 10 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   50/72 = 50 × 5/72 × 5 = 250/360
3. Likewise, for the 2nd fraction, since 10 × 36 = 360,
   42/10 = 42 × 36/10 × 36 = 1512/360
4. Add the two like fractions:
   250/360 + 1512/360 = 250 + 1512/360 = 1762/360
5. 1762/360 simplified gives 881/180
6. So, 50/72 + 42/10 = 881/180
   In mixed form: 4161/180

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