Add 30/60 and 40/70
30/60 + 40/70 is 15/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
30/60 = 30 × 7/60 × 7 = 210/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
40/70 = 40 × 6/70 × 6 = 240/420 - Add the two like fractions:
210/420 + 240/420 = 210 + 240/420 = 450/420 - 450/420 simplified gives 15/14
- So, 30/60 + 40/70 = 15/14
In mixed form: 11/14
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