Add 30/40 and 25/30
30/40 + 25/30 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
25/30 = 25 × 4/30 × 4 = 100/120 - Add the two like fractions:
90/120 + 100/120 = 90 + 100/120 = 190/120 - 190/120 simplified gives 19/12
- So, 30/40 + 25/30 = 19/12
In mixed form: 17/12
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