Add 72/56 and 20/45
1st number: 1 16/56, 2nd number: 20/45
72/56 + 20/45 is 109/63.
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,
20/45 = 20 × 56/45 × 56 = 1120/2520 - Add the two like fractions:
3240/2520 + 1120/2520 = 3240 + 1120/2520 = 4360/2520 - 4360/2520 simplified gives 109/63
- So, 72/56 + 20/45 = 109/63
In mixed form: 146/63
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