Add 72/8 and 90/60
1st number: 9 0/8, 2nd number: 1 30/60
72/8 + 90/60 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
72/8 = 72 × 15/8 × 15 = 1080/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
90/60 = 90 × 2/60 × 2 = 180/120 - Add the two like fractions:
1080/120 + 180/120 = 1080 + 180/120 = 1260/120 - 1260/120 simplified gives 21/2
- So, 72/8 + 90/60 = 21/2
In mixed form: 101/2
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