Add 9/30 and 20/40
9/30 + 20/40 is 4/5.
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,
9/30 = 9 × 4/30 × 4 = 36/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Add the two like fractions:
36/120 + 60/120 = 36 + 60/120 = 96/120 - 96/120 simplified gives 4/5
- So, 9/30 + 20/40 = 4/5
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