Add 18/40 and 3/70
18/40 + 3/70 is 69/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
3/70 = 3 × 4/70 × 4 = 12/280 - Add the two like fractions:
126/280 + 12/280 = 126 + 12/280 = 138/280 - 138/280 simplified gives 69/140
- So, 18/40 + 3/70 = 69/140
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