Add 72/18 and 20/8
1st number: 4 0/18, 2nd number: 2 4/8
72/18 + 20/8 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
72/18 = 72 × 4/18 × 4 = 288/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
20/8 = 20 × 9/8 × 9 = 180/72 - Add the two like fractions:
288/72 + 180/72 = 288 + 180/72 = 468/72 - 468/72 simplified gives 13/2
- So, 72/18 + 20/8 = 13/2
In mixed form: 61/2
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