Add 45/40 and 90/12
1st number: 1 5/40, 2nd number: 7 6/12
45/40 + 90/12 is 69/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
90/12 = 90 × 10/12 × 10 = 900/120 - Add the two like fractions:
135/120 + 900/120 = 135 + 900/120 = 1035/120 - 1035/120 simplified gives 69/8
- So, 45/40 + 90/12 = 69/8
In mixed form: 85/8
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