Add 4/56 and 21/90
4/56 + 21/90 is 32/105.
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,
4/56 = 4 × 45/56 × 45 = 180/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
21/90 = 21 × 28/90 × 28 = 588/2520 - Add the two like fractions:
180/2520 + 588/2520 = 180 + 588/2520 = 768/2520 - 768/2520 simplified gives 32/105
- So, 4/56 + 21/90 = 32/105
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