Add 10/40 and 72/84
10/40 + 72/84 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
10/40 = 10 × 21/40 × 21 = 210/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
72/84 = 72 × 10/84 × 10 = 720/840 - Add the two like fractions:
210/840 + 720/840 = 210 + 720/840 = 930/840 - 930/840 simplified gives 31/28
- So, 10/40 + 72/84 = 31/28
In mixed form: 13/28
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