Add 72/56 and 12/90
1st number: 1 16/56, 2nd number: 12/90
72/56 + 12/90 is 149/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 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 90 × 28 = 2520,
12/90 = 12 × 28/90 × 28 = 336/2520 - Add the two like fractions:
3240/2520 + 336/2520 = 3240 + 336/2520 = 3576/2520 - 3576/2520 simplified gives 149/105
- So, 72/56 + 12/90 = 149/105
In mixed form: 144/105
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