Add 84/56 and 42/80
1st number: 1 28/56, 2nd number: 42/80
84/56 + 42/80 is 81/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 56 × 10 = 560,
84/56 = 84 × 10/56 × 10 = 840/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Add the two like fractions:
840/560 + 294/560 = 840 + 294/560 = 1134/560 - 1134/560 simplified gives 81/40
- So, 84/56 + 42/80 = 81/40
In mixed form: 21/40
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Related: 84/56+84/80