Add 9/56 and 12/90
9/56 + 12/90 is 247/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
9/56 = 9 × 45/56 × 45 = 405/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
12/90 = 12 × 28/90 × 28 = 336/2520 - Add the two like fractions:
405/2520 + 336/2520 = 405 + 336/2520 = 741/2520 - 741/2520 simplified gives 247/840
- So, 9/56 + 12/90 = 247/840
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