Add 18/70 and 36/40
18/70 + 36/40 is 81/70.
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,
18/70 = 18 × 4/70 × 4 = 72/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
36/40 = 36 × 7/40 × 7 = 252/280 - Add the two like fractions:
72/280 + 252/280 = 72 + 252/280 = 324/280 - 324/280 simplified gives 81/70
- So, 18/70 + 36/40 = 81/70
In mixed form: 111/70
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