Answers

Add 1/72 and 63/40

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

1/72 + 63/40 is 143/90.

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,
   1/72 = 1 × 5/72 × 5 = 5/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   63/40 = 63 × 9/40 × 9 = 567/360
4. Add the two like fractions:
   5/360 + 567/360 = 5 + 567/360 = 572/360
5. 572/360 simplified gives 143/90
6. So, 1/72 + 63/40 = 143/90
   In mixed form: 153/90

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