Add 42/54 and 70/45
1st number: 42/54, 2nd number: 1 25/45
42/54 + 70/45 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 45 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 45 × 6 = 270,
70/45 = 70 × 6/45 × 6 = 420/270 - Add the two like fractions:
210/270 + 420/270 = 210 + 420/270 = 630/270 - 630/270 simplified gives 7/3
- So, 42/54 + 70/45 = 7/3
In mixed form: 21/3
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