Add 90/30 and 20/40
1st number: 3 0/30, 2nd number: 20/40
90/30 + 20/40 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
90/30 = 90 × 4/30 × 4 = 360/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Add the two like fractions:
360/120 + 60/120 = 360 + 60/120 = 420/120 - 420/120 simplified gives 7/2
- So, 90/30 + 20/40 = 7/2
In mixed form: 31/2
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