Add 18/70 and 15/56
18/70 + 15/56 is 21/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 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 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Add the two like fractions:
72/280 + 75/280 = 72 + 75/280 = 147/280 - 147/280 simplified gives 21/40
- So, 18/70 + 15/56 = 21/40
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