Add 21/56 and 3/30
21/56 + 3/30 is 19/40.
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,
21/56 = 21 × 15/56 × 15 = 315/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
3/30 = 3 × 28/30 × 28 = 84/840 - Add the two like fractions:
315/840 + 84/840 = 315 + 84/840 = 399/840 - 399/840 simplified gives 19/40
- So, 21/56 + 3/30 = 19/40
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