Adding and subtracting Tenth's

Transcript

Adding and subtracting Tenth'sTo add or subtract tenth’s, we just make them have same denominator and then compare Adding 𝟑 𝟒/𝟏𝟎 and 𝟒 𝟏/𝟏𝟎 These are mixed fractions, converting them into normal fractions 3 4/10=(3 × 10 + 4)/10=𝟑𝟒/𝟏𝟎 4 1/10=(4 × 10 +1)/10=𝟒𝟏/𝟏𝟎 Now, adding 𝟑𝟒/𝟏𝟎 and 𝟒𝟏/𝟏𝟎 Since denominator is same, we just add the numerator 34/10+41/10=(𝟑𝟒 + 𝟒𝟏)/𝟏𝟎 =75/10 =𝟕 𝟓/𝟏𝟎 Subtracting 𝟕 𝟖/𝟏𝟎−𝟓 𝟓/𝟏𝟎 These are mixed fractions, converting them into normal fractions 7 8/10=(7 × 10 + 8)/10=𝟕𝟖/𝟏𝟎 5 5/10=(5 × 10 + 5)/10=𝟓𝟓/𝟏𝟎 Now, subtracting 𝟕𝟖/𝟏𝟎− 𝟓𝟓/𝟏𝟎 Since denominator is same, we just subtract the numerator 78/10− 55/10 =(𝟕𝟖 − 𝟓𝟓)/𝟏𝟎 =23/10 =𝟐 𝟑/𝟏𝟎