Add 42/84 and 54/45
1st number: 42/84, 2nd number: 1 9/45
42/84 + 54/45 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
42/84 = 42 × 15/84 × 15 = 630/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
54/45 = 54 × 28/45 × 28 = 1512/1260 - Add the two like fractions:
630/1260 + 1512/1260 = 630 + 1512/1260 = 2142/1260 - 2142/1260 simplified gives 17/10
- So, 42/84 + 54/45 = 17/10
In mixed form: 17/10
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