Add 90/45 and 70/56
1st number: 2 0/45, 2nd number: 1 14/56
90/45 + 70/56 is 13/4.
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,
90/45 = 90 × 56/45 × 56 = 5040/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
70/56 = 70 × 45/56 × 45 = 3150/2520 - Add the two like fractions:
5040/2520 + 3150/2520 = 5040 + 3150/2520 = 8190/2520 - 8190/2520 simplified gives 13/4
- So, 90/45 + 70/56 = 13/4
In mixed form: 31/4
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