Add 72/56 and 15/45
1st number: 1 16/56, 2nd number: 15/45
72/56 + 15/45 is 34/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
72/56 = 72 × 45/56 × 45 = 3240/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
15/45 = 15 × 56/45 × 56 = 840/2520 - Add the two like fractions:
3240/2520 + 840/2520 = 3240 + 840/2520 = 4080/2520 - 4080/2520 simplified gives 34/21
- So, 72/56 + 15/45 = 34/21
In mixed form: 113/21
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