Add 72/54 and 21/72
1st number: 1 18/54, 2nd number: 21/72
72/54 + 21/72 is 13/8.
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,
72/54 = 72 × 4/54 × 4 = 288/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
21/72 = 21 × 3/72 × 3 = 63/216 - Add the two like fractions:
288/216 + 63/216 = 288 + 63/216 = 351/216 - 351/216 simplified gives 13/8
- So, 72/54 + 21/72 = 13/8
In mixed form: 15/8
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