Add 12/70 and 30/40
12/70 + 30/40 is 129/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Add the two like fractions:
48/280 + 210/280 = 48 + 210/280 = 258/280 - 258/280 simplified gives 129/140
- So, 12/70 + 30/40 = 129/140
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