Add 40/5 and 90/12
1st number: 8 0/5, 2nd number: 7 6/12
40/5 + 90/12 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
40/5 = 40 × 12/5 × 12 = 480/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Add the two like fractions:
480/60 + 450/60 = 480 + 450/60 = 930/60 - 930/60 simplified gives 31/2
- So, 40/5 + 90/12 = 31/2
In mixed form: 151/2
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