Add 54/70 and 16/21
54/70 + 16/21 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
54/70 = 54 × 3/70 × 3 = 162/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
16/21 = 16 × 10/21 × 10 = 160/210 - Add the two like fractions:
162/210 + 160/210 = 162 + 160/210 = 322/210 - 322/210 simplified gives 23/15
- So, 54/70 + 16/21 = 23/15
In mixed form: 18/15
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