Add 72/18 and 63/40
1st number: 4 0/18, 2nd number: 1 23/40
72/18 + 63/40 is 223/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
72/18 = 72 × 20/18 × 20 = 1440/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
63/40 = 63 × 9/40 × 9 = 567/360 - Add the two like fractions:
1440/360 + 567/360 = 1440 + 567/360 = 2007/360 - 2007/360 simplified gives 223/40
- So, 72/18 + 63/40 = 223/40
In mixed form: 523/40
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