Add 20/54 and 70/72
20/54 + 70/72 is 145/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
20/54 = 20 × 4/54 × 4 = 80/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
70/72 = 70 × 3/72 × 3 = 210/216 - Add the two like fractions:
80/216 + 210/216 = 80 + 210/216 = 290/216 - 290/216 simplified gives 145/108
- So, 20/54 + 70/72 = 145/108
In mixed form: 137/108
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