Add 12/45 and 90/56
1st number: 12/45, 2nd number: 1 34/56
12/45 + 90/56 is 787/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
12/45 = 12 × 56/45 × 56 = 672/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
90/56 = 90 × 45/56 × 45 = 4050/2520 - Add the two like fractions:
672/2520 + 4050/2520 = 672 + 4050/2520 = 4722/2520 - 4722/2520 simplified gives 787/420
- So, 12/45 + 90/56 = 787/420
In mixed form: 1367/420
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