Add 72/8 and 90/20
1st number: 9 0/8, 2nd number: 4 10/20
72/8 + 90/20 is 27/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
72/8 = 72 × 5/8 × 5 = 360/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
90/20 = 90 × 2/20 × 2 = 180/40 - Add the two like fractions:
360/40 + 180/40 = 360 + 180/40 = 540/40 - 540/40 simplified gives 27/2
- So, 72/8 + 90/20 = 27/2
In mixed form: 131/2
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