Add 72/24 and 40/21
1st number: 3 0/24, 2nd number: 1 19/21
72/24 + 40/21 is 103/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
72/24 = 72 × 7/24 × 7 = 504/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
40/21 = 40 × 8/21 × 8 = 320/168 - Add the two like fractions:
504/168 + 320/168 = 504 + 320/168 = 824/168 - 824/168 simplified gives 103/21
- So, 72/24 + 40/21 = 103/21
In mixed form: 419/21
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