Answers

Add 15/72 and 63/40

1^st number: 15/72, 2^nd number: 1 23/40

15/72 + 63/40 is 107/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   15/72 = 15 × 5/72 × 5 = 75/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   63/40 = 63 × 9/40 × 9 = 567/360
4. Add the two like fractions:
   75/360 + 567/360 = 75 + 567/360 = 642/360
5. 642/360 simplified gives 107/60
6. So, 15/72 + 63/40 = 107/60
   In mixed form: 147/60

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