Add 30/56 and 21/30
30/56 + 21/30 is 173/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
30/56 = 30 × 15/56 × 15 = 450/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
21/30 = 21 × 28/30 × 28 = 588/840 - Add the two like fractions:
450/840 + 588/840 = 450 + 588/840 = 1038/840 - 1038/840 simplified gives 173/140
- So, 30/56 + 21/30 = 173/140
In mixed form: 133/140
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